Popular Shows by Mordechai Dinerman

1

The First Crusade: The 1096 Massacres and the Rituals They Created

May 6, 2026

1:06:42

In the spring of 1096, crusading armies swept through the Jewish communities of the Rhineland, leaving devastation in their wake. This class traces how those events gave rise to rituals of memory. In the community of Worms, fast days were proclaimed on the 23rd of Iyar and Rosh Chodesh Sivan, accompanied by elaborate mourning customs. We’ll see how in 1716, when Rosh Chodesh Sivan fell on a Friday, rabbinic authorities clashed over davening Maariv early that afternoon. We conclude by tracing the demise of these fast days while noting how other rituals, such as the recitation of Av HaRachamim, have endured to this day. The First Crusade: The 1096 Massacres and the Rituals They Created

2

Did Rambam Actually Set Foot on Har Habayis?

Apr 23, 2026

1:03:21

In the late 1920s, a Jerusalem rabbi cited an obscure passage describing a certain Rabbi Moshe’s pilgrimage to the Holy Land, including what appeared to be a visit to the Temple Mount itself. He seized on it as proof that going there was halachically permitted. This sparked a fierce debate over the passage: Was it even credible? Who exactly was this Rabbi Moshe? Did the text actually refer to the Temple Mount? And if a great rabbi really did go there, what would that mean for us today? This is the second installment in a series about going up onto Har Habayis. Did Rambam Actually Set Foot on Har Habayis?

3

A Scandal on Har Habayis: The Montefiore Story

Mar 16, 2026

1:02:39

There’s a well-known story about Sir Moses Montefiore going up onto Har Habayis during one of his seven legendary trips to Eretz Yisrael. But once you begin looking into it, you quickly discover that there are several versions of the story, each one telling it a bit differently: when he went up, why he did it, how he did it, and what the rabbinic community’s reaction was. As we’ll see, a great deal depends on who is telling the story. In this class, we’ll return to the sources and try to piece together what actually happened. This is the first installment in a series about going up onto Har Habayis. A Scandal on Har Habayis: The Montefiore Story

4

Censoring the Rambam: Part II

Feb 27, 2026

1:00:24

The Mishneh Torah printed in Venice in the 1570s was the product of a broad and deliberate program of censorship. Beyond removing the handful of references to the Christian founder, which we discussed in the prior class, the censors altered many other words and phrases. In some places, entire laws disappear; in others, the language is carefully adjusted to soften its force. In this class, we trace the principles that guided the censors and examine how their work left a lasting imprint on one of Judaism’s foundational texts. Censoring the Rambam: Part II

5

The Halachic Status of Christianity: Insights from Newly Discovered Passages of the Alter Rebbe’s Shulchan Aruch

Mar 9, 2022

1:02:44

For centuries, Halachic authorities have debated how to designate Christian theological beliefs. In recent weeks, a new manuscript of the Alter Rebbe’s Shulchan Aruch has surfaced, providing us with an important new voice in this conversation. The Halachic Status of Christianity: Insights from Newly Discovered Passages of the Alter Rebbe’s Shulchan Aruch

6

Censoring the Rambam

Feb 19, 2026

1:01:03

In October 1949, The New York Times announced a sensational discovery: an ancient manuscript of Mishneh Torah was discovered and it contained a long-lost provocative passage about the Christian founder. The headline sparked excitement, but the story was riddled with errors. In this class, we trace the real history of that controversial passage and examine when, how, and why it was cut by the censor. Censoring the Rambam

7

The Rabbi Who Couldn’t Quit Gambling

Jun 10, 2025

1:07:01

Today, we’ll examine the debate in Venice in 1630 over a communal ban against gambling. Local leaders moved to outlaw games of chance, but Rabbi Yehuda Aryeh Modena pushed back, arguing that the community had no right to restrict a Jew’s freedom in this area. Along the way, we examine the authorship of an anonymous 1595 dialogue on gambling, offering an overview of the halachic arguments and a window into public attitudes about his subject at that time. The story comes full circle as we turn to explore Rabbi Modena’s unique and candid autobiography. The Rabbi Who Couldn’t Quit Gambling

8

Jews and Booze: Uncorking the Wine Debate During the Age of Prohibition

Feb 5, 2026

56:08

Today, we explore Jewish life during Prohibition, when the manufacture and sale of alcoholic beverages were banned in the United States. While the U.S. government granted religious exceptions for wine, both the Reform and Conservative movements distanced themselves from this loophole, endorsing the use of grape juice instead. One contemporary posek passionately rejected grape juice, and we’ll examine the central arguments that shaped this debate. As we’ll see, this issue became a defining point for Orthodox Judaism in the early 20th century. Jews and Booze: Uncorking the Wine Debate During the Age of Prohibition

9

Isaiah 53 on Trial: The 1863 Vienna Case That Split Jewish Leadership

Jan 7, 2026

1:01:56

In the mid-1860s, a wave of rabbinic correspondence swept across central and eastern Europe as leading rabbis grappled with a vexing dilemma: how to respond to an antisemitic trial that touched directly on core points of Jewish theology. This case pitted antisemites against Jews, and within the Jewish community, enlightened progressives against traditionalists. Navigating this reality proved deeply contentious. Isaiah 53 on Trial: The 1863 Vienna Case That Split Jewish Leadership

10

The Controversial History of Mechiras Chametz

Mar 26, 2026

1:10:16

Mechiras chametz is today a standard part of observing Pesach. But how did this practice come to be, and how has it evolved over the centuries? In this class, we analyze the relevant sources in Ashkenazic and Sefardic texts, revealing two distinct approaches to this topic. We’ll then find how the more the sale was refined to accommodate the seller, the more complications it introduced, requiring a series of complex adjustments and, eventually, triggering voices of opposition. All along, we’ll wrestle with a central issue—drawing the line between legal creativity and legal fiction. The Controversial History of Mechiras Chametz

11

Rabbinic Police Powers, Love and Hate, and Stern Censorship: Insights from Newly Discovered Passages of the Alter Rebbe’s Shulchan Aruch

Mar 9, 2022

56:02

The Czarist regime forbade rabbinical courts from employing coercive measures and adopted policies to promote assimilation. This led to the censoring of Jewish texts, and a recent discovery has shown that this also affected the Alter Rebbe’s Shulchan Aruch. Rabbinic Police Powers, Love and Hate, and Stern Censorship: Insights from Newly Discovered Passages of the Alter Rebbe’s Shulchan Aruch

12

A Jewish Guide to Demons and Spirits

Apr 27, 2022

59:35

Do demons exist? Did they ever exist? Is adultery with a demon considered adultery? (Yes, poskim addressed that question.) Jewish sources are not of one voice on this topic. A Jewish Guide to Demons and Spirits

13

A Jewish Guide to Horoscopes and Astrology (Part 1)

May 1, 2022

58:21

Continuing our series of classes on Judaism and the paranormal, this class begins a three-part deep dive into the topic of astrology. As with all of these mysterious topics, two divergent pathways emerge. A Jewish Guide to Horoscopes and Astrology (Part 1)

14

The Day After: Reacting to Moshiach’s Not Coming in Chabad History

Jul 20, 2022

59:34

How have Jewish sages responded when a predicted Messianic time didn’t materialize? Here we focus on this phenomenon within Chabad history. The Day After: Reacting to Moshiach’s Not Coming in Chabad History

15

In the Wake of Shabtai Tzvi’s Betrayal

Jun 7, 2023

1:04:34

In the summer of 1666, Shabtai Tzvi’s conversion to Islam shattered hopes and dreams, leaving Jewish communities grappling with the aftermath of a false redeemer. One contentious issue arose in Amsterdam, where leaders debated whether to continue the performance of Birchas Kohanim each Shabbos, initiated during Shabtai’s self-proclaimed messianic era. Rabbi Yaakov Sasportas penned a series of halachic responsa on this matter, tackling the challenge of ideas proposed by flawed individuals and customs initiated by misguided beliefs. In the Wake of Shabtai Tzvi’s Betrayal

16

The Heartless Chicken

Oct 18, 2023

1:01:30

We examine the tale of the heartless chicken that ignited lively discussion among rabbinic authorities in the year 1709. We introduce the pivotal figures in this intriguing narrative, examine the framing of the question, analyze the diverse range of answers proposed, and learn about the captivating research endeavors undertaken by these rabbis in their quest for a definitive solution. This engaging study about the interplay between science and tradition offers unique insights into the intellectual landscape of the time. The Heartless Chicken

17

Unconditional Love: A Commemorative Study of a Talk by the Lubavitcher Rebbe

Jul 2, 2024

1:06:07

As we approach Gimmel Tammuz, marking the Rebbe’s thirtieth Hilula, we’re doing something different: a text-based class on an important talk by the Rebbe from Shabbos Korach 1988, a talk that captures a lot of the Rebbe’s hashkafah. The aim is to find inspiration and wisdom in his words, which can be applied to our daily lives and shared with others. Unconditional Love: A Commemorative Study of a Talk by the Lubavitcher Rebbe

18

The Titanic Question: The Halachic Dilemma of Men Lost at Sea

Dec 13, 2024

1:01:36

When a shipwreck in the 1500s left families wondering about the fate of their loved ones, rabbinic authorities debated whether the wives of the missing passengers could remarry. This centuries-old question resurfaced in 1912 with the famous sinking of the Titanic, reigniting the discussion of applying Halachah in tragic circumstances. The Titanic Question: The Halachic Dilemma of Men Lost at Sea

19

The Doctored Talmud: Prague, 1728

May 6, 2025

1:21:15

There’s a long and painful history of the Gemara being censored in Christian lands, but in 1728, a draconian form of censorship led to the publication of a heavily redacted Maseches Berachos. A fierce debate erupted within the Jewish community: was it better to print a mutilated Gemara, or not to print it at all? In this class, we explore the rabbinic voices on both sides, the arguments they advanced, and actual examples of the edits. It’s a compelling glimpse into a community grappling with impossible choices under the weight of galus. Link to this 1728 edition: https://books.google.com/books?id=IW9iAAAAcAAJ&printsec=frontcover&source=gbs ge summary r&cad=0#v=onepage&q&f=true The Doctored Talmud: Prague, 1728

20

We’ve Been Singing It All Wrong? Solving the V'chol Maaminim Mystery

Sep 19, 2025

1:07:49

Ever feel like some piyutim just don’t flow right, as if the stanzas are out of order? Join us for a historical detective journey as we trace the piyut V'chol Maaminim and explore its possible connection to the enigmatic poet Yannai, whose true genius was hidden for centuries. We’ll uncover forgotten clues from the Cairo Geniza and reveal the song’s original, elegant structure. Finally, we’ll explore how key ideas from Chasidus unlock profound messages within its stanzas—a perfect way to enter the new year. We’ve Been Singing It All Wrong? Solving the V'chol Maaminim Mystery

21

Dominating Wives, Suffering, and Reincarnation: The Debate About Gilgul and It’s Connection to Pesach

Apr 13, 2022

1:00:01

While the kabbalists embraced the concept of reincarnation, other rabbis were skeptical. What lies at the root of this dispute? And how did the kabbalists address the various challenges raised about this doctrine? Dominating Wives, Suffering, and Reincarnation: The Debate About Gilgul and It’s Connection to Pesach

22

Blatant Disregard of a Torah Law? On the Prohibition Against Settling in Egypt

Apr 18, 2022

1:01:32

Some of the greatest Torah sages lived in Egypt even as the Talmud ruled that this was forbidden. Over the years, numerous justifications have been provided. Which will resonate with you? Blatant Disregard of a Torah Law? On the Prohibition Against Settling in Egypt

23

A Jewish Guide to Horoscopes and Astrology (Part 2)

May 8, 2022

42:09

Continuing to explore astrology from a Jewish perspective. What are the theological problems with accepting astrology and how did the rabbis address this? We will discover a range of opinions about how easy or difficult it is to subvert an astrological outcome. A Jewish Guide to Horoscopes and Astrology (Part 2)

24

Does Israel Amount to (the Beginnings of) Kibutz Goliyos?

Jul 24, 2022

1:07:27

The Rebbe Rashab addressed this issue when confronted with Zionism, and the Rebbe did the same a few decades later after the State of Israel was established. Does Israel Amount to (the Beginnings of) Kibutz Goliyos?

25

After A Decade of Barrenness: What Actually Happens

Nov 2, 2022

1:04:38

The Talmud famously rules that a childless couple must divorce after ten years of infertility. Yet, this law has often been overlooked, a reality that goes back many centuries. This class explores how, when, and why this occurred. After A Decade of Barrenness: What Actually Happens

26

Rambam’s Menorah: Insights from Ancient Hebrew Manuscripts | Favorite Episodes

Dec 6, 2023

1:09:07

Click here to view the class PowerPoint slides. Favorite Episodes | Initially released in July 2023. We are all acquainted with the renowned depiction of the menorah created by the Rambam. In this class, we dig into the story of this image. Where did it come from? Can we trust its accuracy? When was it discovered? Did later artists and copyists treat it as just a doodle or something more meaningful? Rambam’s Menorah: Insights from Ancient Hebrew Manuscripts

27

The Frankist Blood Libel

May 8, 2024

1:04:03

In 1759, a clandestine faction of Shabetai Tzvi’s followers in Poland committed a startling act: they collectively converted to Christianity while simultaneously accusing Jews of the age-old fabrication of using blood in matzah production. Despite the longstanding existence of the blood libel, this marked the first instance where the accusation was made by citing and distorting Talmudic and halachic sources. In this class, we examine the specific passages they employed and learn the response of the Jewish leadership during that era. As Ber of Bolochov, the chronicler of this event, emphasized, recording this narrative was essential to ensure that future generations would understand the suffering and trials of their ancestors and how it was notably worse when it emanated from within the Jewish community. The Frankist Blood Libel

28

The Great Semicha Controversy, 1538

May 13, 2025

1:13:59

After the Spanish Expulsion, a group of leading rabbis in Tzfas, led by Rabbi Yaakov Beirav, set out to revive semichah—the original form of judicial ordination that linked back to Moshe Rabbeinu. They planned to reestablish semichah through broad rabbinic consensus, but not everyone was on board. In Jerusalem, Rabbi Levi ibn Chabib strongly objected, raising serious questions about the halachic basis and the broader implications of the move. This class explores the halachic arguments, the historical backdrop, and the deeper motivations behind one of the boldest and most controversial rabbinic initiatives. The Great Semicha Controversy, 1538

29

Kosher Pig? Analyzing a Mysterious Midrash (Part 1)

Mar 20, 2022

59:47

There’s a well-known tradition that it will be permissible for Jews to consume the meat of a pig when Moshiach comes. What is the source for this teaching and what is its logic? Can there ever be a time when mitzvos are suspended? There are multiple approaches to these questions. Kosher Pig? Analyzing a Mysterious Midrash (Part 1)

30

Kosher Pig? Analyzing a Mysterious Midrash (Part 2)

Mar 27, 2022

50:59

Continuing to explore whether there can ever be a time when mitzvos are suspended, and how this relates to the mysterious teaching that the pig will one day become kosher. Kosher Pig? Analyzing a Mysterious Midrash (Part 2)

31

The Old, the New, the Forgotten: Halachah and Minhag In Haggadah Art

Apr 6, 2022

58:47

Medieval illuminated Haggadahs shed light on how the observance of the past was both similar to and different from the present. Taking this journey is an excellent way to review some of the laws and customs of Pesach. The Old, the New, the Forgotten: Halachah and Minhag In Haggadah Art

32

The Blood Libel and Talmudic Censorship

Apr 10, 2022

58:30

Since ancient times, Jews have been falsely accused of killing non-Jews for ritual purposes. In medieval Europe, beginning in the twelfth century, this was often accompanied by accusations that Jews used their victims’ blood to bake matzah for the Jewish holiday of Passover. This ridiculous but deadly lie would eventually lead to subtle Talmudic Censorship. The Blood Libel and Talmudic Censorship

33

The Mekashya Mystery

Jul 27, 2022

1:01:17

Tunisian Jews used to refer to Tanach as Mekashya, but few understood why. Fortunately, illuminated medieval Jewish manuscripts can help solve this mystery, revealing a unique perspective on the study of Tanach. The Mekashya Mystery

34

The Cracow Couple and Rama's Remarkable Responsum

Aug 31, 2022

1:03:29

A controversial wedding ceremony ca. 1550 sheds important light on the inner rabbinic process, the history of Jewish marriage, and the limits of rabbinic law. The Cracow Couple and Rama's Remarkable Responsum

35

When A London Rabbi Was Accused of Heresy

Dec 16, 2022

57:11

In November 1703, Rabbi David Nieto delivered a controversial sermon at the Bevis Marks Synagogue in London, causing a rift in the local Jewish community. The cause of the feud may have been mundane politics, but it forced a thought-provoking rabbinic responsum about nature, G-d, deism, and pantheism. When A London Rabbi Was Accused of Heresy

36

Burning of the Books: The Alter Rebbe, the Gra, and the Tzimtzum Tussle

Jan 18, 2023

1:10:01

In 1796, a work of the Baal Shem Tov’s teachings was consigned to the flames. What were the specific passages in this book that some deemed objectionable? This will help us uncover the most fundamental theological difference between Chasidim and non-Chasidim at the turn of the nineteenth century. Burning of the Books: The Alter Rebbe, the Gra, and the Tzimtzum Tussle

37

Secrets of a Chozer: An Interview with Rabbi Simon Jacobson

Jan 30, 2023

2:36:02

(0:38) – General Introduction (3:08) – Rabbi Jacobson’s introduction about תורת חב"ד (7:36) – Introduction about himself (18:41) – How he got started in חזרה (21:31) – Getting more involved in תשל"ח as Reb Yoiel’s sidekick (25:34) – Becoming an official מניח in winter תשל"ח (26:27) – First הנחה (28:12) – The nightmare of מקץ תש"מ (35:23) – How הגהה worked (37:01) – How to tell if a random page is מוגה (40:31) – Sichos that were difficult to remember/understand (43:06) – The difficulty of the pre-הקפות farbrengen (45:08) – Why they didn’t divide the task of remembering (45:49) – His role in מאמרים (46:56) – Keys to memory (51:43) – Making a mental map; numbering ideas (54:03) – Demonstrating samples (58:23) – A sharp מענה to a complicated question (1:01:43) – How he took the sharp מענות (1:03:33) – Edits to באתי לגני תש"מ, and the mysterious cutting of the page (1:08:18) – The Rebbe’s כתי"ק about radio (1:14:06) – Did you ever get a galley back from the Rebbe without any corrections? (1:15:03) – Cases when the Rebbe wrote מבהיל (1:23:48) – Working relationship with Reb Yoel (1:26:23) – Defying others to ask the Rebbe a personal question—and it paid off – Yiddish, Hebrew, and other languages – Adapting the spoken word to the written word – Transitioning to a computer in the mid-1980s – The Rebbe choosing fonts – Identifying sources – Sources that have not been found – The struggle and adrenaline rush to keep up with the Rebbe – The science and history of השמטות – When the Rebbe said that certain things should not be printed – Overview of ש"פ פנחס תשמ"ה – Overview of ליל שמח"ת תשמ"ז – The value of the בלתי מוגה even when there’s מוגה – About באתי לגני תשכ"ג Secrets of a Chozer: An Interview with Rabbi Simon Jacobson In honor of shnas hakhel, Unzer-Chadash Shul hosted Rabbi Simon Jacobson and had the opportunity to ask him about his work of remembering, transcribing, and publishing the Rebbe’s sichos. Posted in honor of Yud Shvat.

38

The Controversial Haskamah

Jul 19, 2023

1:06:44

Starting in the 1870s, a visionary Jerusalem rabbi was consumed by the idea of resurrecting the ancient mitzvah of guarding the site of the Beis Hamikdash. But his fervor was met with indifference and opposition from others, sparking a halachic debate of significant proportions. As the narrative unfolds, unexpected connections emerge, revealing the curious involvement of the Chabad rebbes in this intriguing tale. The Controversial Haskamah

39

Troubling Tales: The Rebbe’s Approach to Controversial Stories

Aug 31, 2023

1:00:10

The Lubavitcher Rebbe raised an interesting question on the renowned tale of Rabbi Amnon and Unesaneh Tokef. We’ll show that this comment was just the tip of the iceberg as we delve into the Rebbe’s reaction to ten distinct stories that raised halachic or ethical concerns. Stories mirror cherished values and shape communal norms, underscoring the significance of this exploration. Troubling Tales: The Rebbe’s Approach to Controversial Stories

40

The Puzzle of Peshat: Rashbam’s Controversial Commentary

Oct 11, 2023

57:37

In 1158, Rabbi Avraham ibn Ezra found himself disturbed by a provocative dream, which ultimately inspired him to author a treatise concerning the proper start time of the halachic day—evening. One possibility is that this work was a polemical discourse aimed at Rashbam’s Torah commentary. This prompts us to delve into the story of this commentary, examining some of the controversial passages that have sparked confusion throughout the ages. Ultimately, we emerge from this exploration with an empowering revelation: the fact that the halachic day commences at nightfall teaches us about becoming resilient in times of crisis. The Puzzle of Peshat: Rashbam’s Controversial Commentary

41

The Scandalous History of Aleinu

Dec 19, 2023

1:06:18

When we examine medieval manuscripts that feature Aleinu, we uncover intriguing instances of censorship within this ancient prayer. What motivated these textual alterations, and can they be linked to a specific historical event? Delving into this subject unveils a significant episode from the year 1390, shedding light on the numerous amendments and erasures made to the text. These changes continue to influence various minhagim to the present day. Relevant links: Michael Machzor https://digital.bodleian.ox.ac.uk/objects/b3f2d1d5-ff07-4a6e-87ea-281c41957925/surfaces/2df6a671-c677-4e7d-a5df-e722f28f4c60/# Esslingen Machzor https://digitalcollections.jtsa.edu/islandora/object/jts%3A2173#page/43/mode/1up Tripartite Machzor https://digital.bodleian.ox.ac.uk/objects/9e481d9a-06e6-41e8-ae36-a58d445a1ffa/surfaces/f6ca5ba3-7c09-4b1f-a288-3d3c052e65e9/# Machzor from the Rhineland https://bibliophilly.library.upenn.edu/viewer.php?id=CAJS%20Rar%20Ms%20382#page/489/mode/1up Worms Machzor https://www.nli.org.il/he/manuscripts/NNL ALEPH000044560/NLI?volumeItem=2#$FL21059450 The Scandalous History of Aleinu - New Episode

42

The Printers’ Clash: The Battle Over Rambam’s Mishneh Torah, Venice 1550

Apr 8, 2024

1:06:26

In the year 1550, two non-Jewish printers published competing editions of Rambam’s Mishneh Torah. One of them partnered with an esteemed rabbi from Padua, who, in his quest for support, turned to Rabbi Moshe Isserlis. Rama’s response along with a careful examination of the printed volumes unveil the details of this dispute. Rama’s scholarly answer also sheds light on various areas of commercial Halachah as well as the Noahide laws. The Printers’ Clash: The Battle Over Rambam’s Mishneh Torah, Venice 1550

43

The Kittsee Haggadah

Apr 10, 2024

58:24

The library of Agudas Chasidei Chabad houses a remarkable manuscript crafted in 1760 by the talented scribe and artist Chaim ben Asher Anshel of Kittsee, near present-day Bratislava. We’ll trace the journey of this Haggadah from its creation to its acquisition by the Frierdiker Rebbe. Opening this manuscript, we’ll examine its layout, artwork, nusach, and style of nikud, seeking to uncover the influences that shaped Chaim ben Asher’s masterpiece through a comparative analysis with other Haggadahs of that period. To purchase a facsimile of the Kittzee Haggadah: https://store.kehotonline.com/prodinfo.asp?number=HP-HAGG.KITZEE To view it online, visit the following link and insert card number “1950”: https://chabadlibrary.org/catalog/index.php?catalog=mscatalog Additional Links: Kittzee Haggadah 1748, Gross Collection https://www.nli.org.il/en/discover/manuscripts/hebrew-manuscripts/viewerpage?vid=MANUSCRIPTS#d=[[PNX MANUSCRIPTS990000632400205171-1,FL54685621 Kittzee Haggadah 1768, Hebrew Union College https://mss.huc.edu/phpviewer/index.php?path=MS 451 Kittzee Haggadah 1769, Jewish Museum London https://www.nli.org.il/en/discover/manuscripts/hebrew-manuscripts/viewerpage?vid=MANUSCRIPTS#d=[[PNX MANUSCRIPTS990001792760205171-1,FL28179029 Kittzee Haggadah 1771, Hungarian Academy of Sciences https://www.nli.org.il/en/discover/manuscripts/hebrew-manuscripts/viewerpage?vid=MANUSCRIPTS#d=[[PNX MANUSCRIPTS990001920270205171-1,FL59161404 Kittzee Haggadah 1772, JTS Library https://digitalcollections.jtsa.edu/islandora/object/jts%3A62343#page/41/mode/1up Amsterdam 1695 https://www.nli.org.il/en/books/NNL ALEPH990013798840205171/NLI#modal-downloadModal Prague 1713 https://www.nli.org.il/en/books/NNL ALEPH990013798850205171/NLI Offenbach 1721 https://www.hebrewbooks.org/4923 Frankfurt 1724 https://www.nli.org.il/en/books/NNL ALEPH990010665310205171/NLI

44

The Provocative Portrait: Unveiling the True Face of Moshe Rabbeinu

Jun 18, 2024

1:12:19

Rabbi Yisrael Lifshitz, a well-known commentator on the Mishnah, included a provocative legend about Moshe Rabbeinu in his writings, suggesting that Moshe naturally possessed negative character traits. Over the following decades, some rabbis strongly opposed this legend, arguing that its claims were baseless and defamed Moshe’s revered image. In this class, we’ll talk about the origins of this controversial story, look at both sides of the debate, and explore why this account struck a chord with many Chasidic authors. The Provocative Portrait: Unveiling the True Face of Moshe Rabbeinu

45

Dreams of Revision: The Role of Dreams in Altering Halachic Rulings

Aug 21, 2024

1:09:49

In the 1970s, a Chabad journal in Israel published a story about the Alter Rebbe reversing a halachic ruling based on a dream, sparking significant controversy. This incident opens the door to a fascinating exploration of a practice that was surprisingly common among Ashkenazic rabbis in the 12th and 13th centuries—using dreams to guide halachic decisions. Dreams of Revision: The Role of Dreams in Altering Halachic Rulings

46

Fowl Play: The Great Turkey-Chicken Debate of the 19th Century

Sep 4, 2024

1:07:25

In the 1860s, European Jewish communities faced a unique halachic challenge: the arrival of new chicken breeds from distant lands. As these exotic fowl entered the marketplace, rabbis debated their kosher status, igniting an adjacent discussion on how and why the turkey became accepted as kosher. Fowl Play: The Great Turkey-Chicken Debate of the 19th Century

47

Josephus

Jan 9, 2025

1:05:23

The book known as Yosifun, cherished in traditional Jewish circles, and the books of Josephus, preserved in Greek and Latin by non-Jewish hands, spark challenging questions about authorship, reliability, and reconstructing the Jewish past. This class explores how rabbis throughout the ages evaluated these works, their role on the Jewish bookshelf, and how to navigate the apparent discrepancies between their accounts and the teachings of chazal. Josephus

48

The Scandalous Marriage, 1348

Jan 24, 2025

1:04:42

On the fifteenth of Shevat, 1348, in the city of Tudela, a man named Yosef performed kidushin with a young woman named Belita. What began as a seemingly ordinary wedding ceremony quickly became a shocking controversy. People who were present asked Belita whether she was truly consenting, and instead of her confirming, it was her father who spoke on her behalf. Further investigation revealed that Belita had previously stated her refusal to this marriage not once but twice, and, in fact, was already married to her uncle Avraham. To complicate matters, she was also engaged to a third man! On the eve of the Black Death sweeping through Europe, this tangled web of relationships turned into a halachic dilemma that ultimately reached the desk of Rabbi Yehudah, son of the Rosh. The Scandalous Marriage, 1348

49

The Story of the Alter Rebbe’s Script

Mar 26, 2025

1:19:50

The Alter Rebbe’s unique script for safrus has a rich and winding history. It has been inked, shelved, revived, and debated—and everyone seems to have an opinion. So, what is the story behind this ksav? What sets it apart? Why do some embrace it wholeheartedly while others remain unsure? This class explores its historical trajectory, some of its writing nuances, and the ongoing conversation around its adoption. Links to images: Megilah of Rebbe Maharash in Aguch library: https://hebrewstam.blogspot.com/2013/03/blog-post 120.html Megilah attributed to Rebbe Maharash, Carlebach family: https://yeshivasstam.com/maharash Tefillin of the Frierdiker Rebbe: https://hebrewstam.blogspot.com/2012/11/blog-post 19.html#comment-form Tefillin attributed to Reb Reuven Sofer, Gurary family: https://hebrewstam.blogspot.com/2016/01/blog-post 21.html The Story of the Alter Rebbe’s Script

50

The Great Semicha Controversy, Part II

May 20, 2025

1:14:56

Today, we’re picking up where we left off in the story of chidush hasemicha. We’ll look at what unfolded after Rabbi Levi ibn Chabib pushed back against Rabbi Yaakov Beirav’s plan and how the controversy evolved in the decades that followed. We’ll dive into Rabbi Yosef Caro’s role in the debate and then turn to the remarkable mission in the 1830s, spearheaded by Rabbi Yisrael of Shklov, to find the Ten Lost Tribes in a bold attempt to revive semicha. The Great Semicha Controversy, Part II

51

Up High or Down Low? The Battle Over the Proper Trop for the Aseres Hadibros

May 28, 2025

1:13:41

In 1725, Rabbi Zalman Hena published Shaarei Tefilah and sparked controversy by calling for a complete stop to the use of taam ha’elyon—the unique system of trop traditionally used for reading the Aseres Hadibros. Rabbi Yaakov Emden wasn’t having it and fired back forcefully in his Luach Eresh. This class unpacks their debate, the sources they cite, the Alter Rebbe’s position, and what we know about the two competing systems of trop for reliving Matan Torah. Up High or Down Low? The Battle Over the Proper Trop for the Aseres Hadibros

52

Wine: Blind Tastes, Price Controls, and the Most Regulated Wine Market You’ve Ever Seen

Jan 14, 2026

1:04:22

This class takes us inside the Jewish wine economy of earlier centuries. We will see communities enforcing price ceilings, outlawing seller collusion, and appointing assessors to protect community members from being overcharged. In some places, the system became so aggressively strict: monopoly-style selling rights, blind tastings, barrels sealed by wine assessors, community-owned measuring jugs, and stiff fines for anyone who tried to sell wine off the books. Wine: Blind Tastes, Price Controls, and the Most Regulated Wine Market You’ve Ever Seen

53

Beis Yosef vs. Kesef Mishneh: Following the Paper Trail

Feb 13, 2026

1:13:33

The class follows the paper trail in Rabbi Yosef Caro’s Kesef Mishneh to reconstruct how and when this major commentary actually came into being. After examining its printing history and the author’s stated purpose, the discussion turns to a key flashpoint: whether Kesef Mishneh represents Rabbi Yosef Caro’s final halachic word. We work through the evidence—internal cross-references, page numbers, textual features, and colophons—and ultimately arrive at a tentative conclusion. As one of the central commentaries on the Rambam, this investigation is a fitting and meaningful way to mark the start of the new Rambam learning cycle. Beis Yosef vs. Kesef Mishneh: Following the Paper Trail

54

Purim Class - The Manos Halevi by Rabbi Shlomo Alkabetz: Overview and Highlights

Mar 13, 2022

57:45

One of the most important commentaries on Megilas Esther was authored by Rabbi Shlomo Halevi Alkabetz (d. 1576), the famed author of Lecha Dodi. We explore eight memorable teachings from Manos Halevi and examine how they are cited and explained in Chabad sources. Purim Class - The Manos Halevi by Rabbi Shlomo Alkabetz: Overview and Highlights

55

Purim Through the Lens of Historic Jewish Art

Mar 16, 2022

1:11:13

The Jews throughout the ages who employed art to depict the Purim story left us a legacy rife with messaging. Synagogue walls, biblical manuscripts, and medieval machzorim can teach us a lot about what Purim used to mean and what it can still mean today. Purim Through the Lens of Historic Jewish Art

56

The Letter and Spirit of the Law vis-a-vis Imitation Products

Mar 23, 2022

57:40

Is it appropriate for a Jew to eat kosher imitation bacon, crab, or shrimp? Is this undermining the spirit of Kashrus? Central to the contemporary discussion is a fascinating Talmudic passage about a conversation between Yalta and Rav Nachman, which deserves analysis and exploration. The Letter and Spirit of the Law vis-a-vis Imitation Products

57

Evolution of the Haggadah: A Pictorial History, from the Cairo Genizah, to the Medieval Art Workshop, to the Modern Printing Press

Mar 30, 2022

1:01:09

The Story of the Haggadah is synonymous with the story of the Jewish people. Observe how this most famous Jewish liturgical work has evolved in its appearance from one generation to the next. Yes, things do change, but they also stay the same. Evolution of the Haggadah: A Pictorial History, from the Cairo Genizah, to the Medieval Art Workshop, to the Modern Printing Press

58

Finders Keepers? Halachic Implications From Tzaraas In the Home

Apr 3, 2022

56:38

Every so often we hear of someone who is blessed with a true windfall. In such instances, we often find multiple parties claiming a stake in the bonanza. How do we determine ownership when there are conflicting claims to life’s valued surprises? Finders Keepers? Halachic Implications From Tzaraas In the Home

59

A Jewish Guide to the Evil Eye

May 4, 2022

1:06:07

The background and origins of red strings, kinora, and “poo-poo”; Rambam’s position on the matter; and two models for how Jews understood this mysterious phenomenon. A Jewish Guide to the Evil Eye

60

Overturning Roe v. Wade: Good for the Jews?

May 11, 2022

1:14:57

A leaked draft suggests that the highest court of the land is primed to overturn one of the most controversial cases in American history. It’s time to revisit what Halachah has to say on the topic of abortion and the beginning of life. Overturning Roe v. Wade: Good for the Jews?

61

A Jewish Guide to Horoscopes and Astrology (Part 3)

May 15, 2022

59:06

The final class of the series, in which we introduce Rambam’s position, Chasidic sources, and wrap up the topic with the key takeaways. A Jewish Guide to Horoscopes and Astrology (Part 3)

62

The Cairo Genizah: Shedding Light on the Life and Works of the Rambam

May 18, 2022

56:21

The Cairo Geniza unveils much about Rambam’s communal activism, teaching, authorship, lost works, and overall life. The Cairo Genizah: Shedding Light on the Life and Works of the Rambam

63

Mishneh Torah: A Biography

May 22, 2022

1:09:19

We can document how the Mishneh Torah was drafted, finalized, updated, disseminated, illuminated, critiqued, printed, and censored. Mishneh Torah: A Biography

64

Explaining the Holocaust? Multiple Approaches by the Frierdiker Rebbe and Rebbe

May 25, 2022

1:06:31

Many assume that "explaining" and "Holocaust" are never to be seen in the same sentence. How did we get here? And was it always this way? Explaining the Holocaust? Multiple Approaches by the Frierdiker Rebbe and Rebbe

65

Shavuos Through the Lens of Historic Jewish Art

May 29, 2022

1:08:25

Why animal heads replace human heads; why the luchos morph into a Torah scroll; and the origins of the areinfirenish and dairy on Shavuos. Shavuos Through the Lens of Historic Jewish Art

66

Shavuos Art, and the Strange History of Akdamus

Jun 1, 2022

1:14:47

By examining the liturgy and art in a tiny medieval machzor, we learn how hearing the Aseres Hadibros was experienced seven hundred years ago, and how it's both similar and different today. Shavuos Art, and the Strange History of Akdamus

67

Spelling Hashem’s Name in Hebrew Manuscripts

Jun 8, 2022

1:02:52

We are used to seeing two Yudin as a substitute for G-d’s ineffable name. But it wasn’t always that way. Spelling Hashem’s Name in Hebrew Manuscripts

68

The Rebbe’s Reshimas Hamenorah: An Overview

Jun 12, 2022

1:00:04

Rabbi Elazar and Rabbi Yehudah (Rebbi) debated how the furniture in the Beis Hamikdash was situated, and this reflected their philosophies about life. The Rebbe’s Reshimas Hamenorah: An Overview

69

Remembering and Forgetting: The History of Chof Sivan

Jun 15, 2022

1:00:01

This day has a sad history of persecution, but also an interesting tendency to be taken seriously at first, only to peter out after some time. Remembering and Forgetting: The History of Chof Sivan

70

The Curious Case of the Desert Dead

Jun 19, 2022

57:43

The Talmud famously recounts how one of its sages discovered the “dead of the desert.” Drawing on a range of sources, the Rebbe explained this Talmudic tale with symbolic depth and personal relevance. The Curious Case of the Desert Dead

71

The Scandal of the Missing Line: Allegations of Textual Corruption against Chabad

Jun 22, 2022

1:05:36

The Tzemach Tzedek wrote about the proper brachah to make on a talis katan, but some have alleged that we tampered with his text. The Scandal of the Missing Line: Allegations of Textual Corruption against Chabad

72

Who Wrote the Dead Sea Scrolls? A Talmudic Approach

Jun 26, 2022

56:36

The first of a three-part series analyzing how the Dead Sea Scrolls can deepen our understanding of the Mishnah and Talmud. Who Wrote the Dead Sea Scrolls? A Talmudic Approach

73

Gun Control: Talmudic Perspectives

Jun 29, 2022

1:01:54

The Supreme Court recently issued a landmark decision regarding the “right to bear arms.” What does Halachah offer on this topic? Gun Control: Talmudic Perspectives

74

The Dead Sea Scrolls (Part 2): An Alternative Jewish Calendar

Jul 3, 2022

55:49

The Dead Sea Scrolls present a sectarian system for measuring time and celebrating the festivals, and it may help us understand an enigmatic line in our Mishnah. The Dead Sea Scrolls (Part 2): An Alternative Jewish Calendar

75

Paris 1240: Disputation and Devastation

Jul 6, 2022

1:04:02

Rabbi Yechiel of Paris was forced to defend the Gemara before a Christian tribunal. Despite his courageous efforts, the Talmud was condemned to the flames. Paris 1240: Disputation and Devastation

76

The Dead Sea Scrolls (Part 3): The Philosophical Dispute

Jul 10, 2022

1:02:26

The abundance of name calling in some of the Dead Sea Scrolls exposes diverging worldviews about how halachic interpretation should operate. The Dead Sea Scrolls (Part 3): The Philosophical Dispute

77

Predicting the Redemption: What About the Talmudic Prohibition?

Jul 12, 2022

1:00:58

The Talmud tells us to refrain from predicting when Moshiach will come, and Rambam affirms this ruling in his code of law. But Rambam himself, and so many other rabbinic sages, issued messianic predictions. Why? Predicting the Redemption: What About the Talmudic Prohibition?

78

The Barcelona Disputation: Was Moshiach Born on Tisha B’Av?

Aug 3, 2022

1:06:41

At two medieval disputations, a famous Midrash was invoked to argue that Moshiach had already come. The rabbinic approaches to this Midrash unveil different approaches to Talmudic Aggadah. The Barcelona Disputation: Was Moshiach Born on Tisha B’Av?

79

The Rebbe Rashab, Zionism, and Expediting the End

Aug 10, 2022

1:02:18

The Rebbe Rashab invoked “dechikas haketz” as one reason to be against Zionism. What are the contours of this prohibition? Does it still apply? The Rebbe Rashab, Zionism, and Expediting the End

80

Buried Alive: The 18th-Century Halachic Debate

Sep 7, 2022

1:03:12

In 1772, the Duke of Mecklenburg decreed that Jews could not bury their dead until three days after death. The Jewish community faced difficult questions about the mitzvah of burial. Buried Alive: The 18th-Century Halachic Debate

81

The Battle Over Machnisei Rachamim (Part 1)

Sep 14, 2022

52:59

It’s a beloved piece of liturgy, recited as we begin the new year. But some of the greatest halachic figures waged war against it, suggesting that it expresses quasi-heretical beliefs. In Part 1 we hear the voices of the opponents, and Part 2 will examine the defense. The Battle Over Machnisei Rachamim (Part 1)

82

The Battle Over Machnisei Rachamim (Part 2)

Sep 21, 2022

55:28

In the previous episode, we witnessed some of the greatest halachic figures waging war against Machnisei Rachamim and a number of other piyutim. In Part 2, we hear the voices of the supporters. The Battle Over Machnisei Rachamim (Part 2)

83

Friday Night Kiddush Between 6 and 7

Nov 9, 2022

56:56

This class traces the minhag of avoiding the recitation of the Friday night kiddush during the seventh hour after midday. When and why did this custom begin? Friday Night Kiddush Between 6 and 7

84

Is It Kosher To Elope? Marriage Without Parental Consent

Nov 16, 2022

58:46

Does the mitzvah of honoring parents imply that parents wield halachic control over their children’s marriage? Intriguingly, this question became a factor in the tensions that arose with the advent of the Chasidic movement in the eighteenth century. Is It Kosher To Elope? Marriage Without Parental Consent

85

Liturgical Warfare Among 16th-Century Italian Jews

Nov 23, 2022

1:02:38

As Italian Jews immigrated to the Ottoman Empire during the sixteenth century, many wanted to switch to the Sephardic liturgical style. The question then was whether it was permitted to abandon well-entrenched communal customs—a question that’s very much relevant today. Liturgical Warfare Among 16th-Century Italian Jews

86

The Meaning of Dreaming: Talmudic Perspectives

Nov 30, 2022

1:02:24

Are our dreams significant? Do they have predictive value? Should we pay heed to their warnings? The Talmud seems to offer contradictory teachings on this subject, and this will lead us toward two classic approaches to this matter. The Meaning of Dreaming: Talmudic Perspectives

87

Between Ashkenaz and Sefard: Medieval Women, Biblical Dena, and the Public Square

Dec 7, 2022

56:37

We can learn about the public presence of women in a given society by examining how various rabbis understood the story of Dina. We’ll witness the difference between Ashkenazic and Sefardic commentaries, between the Tanchuma and Bereishis Rabah, and between Ashkenazic and Sefardic halachic norms. Between Ashkenaz and Sefard: Medieval Women, Biblical Dena, and the Public Square

88

Evolution of the Tanya: Timely Lessons from the Eighteenth-Century Battle against Chasidism

Jan 4, 2023

1:03:58

The pre-print manuscripts of Tanya shed light on what the Alter Rebbe added to this seminal text at a later stage. Curiously, three of the most notable updates involve interpersonal relationships. This lecture was recorded live by Jewish Multimedia Library, a.k.a. JML, Melbourne Australia. Many additional recordings are available from their website: www.jml.org.au. Evolution of the Tanya: Timely Lessons from the Eighteenth-Century Battle against Chasidism

89

The Nile on Trial: 16th-Century Rabbis and Aquatic Science

Jan 12, 2023

1:00:30

In 1549, the rabbinical court in Cairo held hearings and engaged in extensive research to learn about the source of the annual flooding of the Nile. The rabbis of the day found themselves on different sides of this scientific question and vehemently defended their respective positions. But why did they care? The Nile on Trial: 16th-Century Rabbis and Aquatic Science

90

Loathing Our Clothing: The Despot’s Decree and Rabbinic Response

Jan 25, 2023

1:04:41

In 1844, the Czar of Russia issued a ban on traditional Jewish clothing worn by Eastern European Jews for centuries, leaving the community with a dilemma: should they adhere to their cultural customs, or comply with the government’s decree? Loathing Our Clothing: The Despot’s Decree and Rabbinic Response

91

Dividing Tanach into Chapters: A Historical Overview

Feb 8, 2023

1:08:18

The division of Tanach into chapters didn’t originate with Jewish scholars or rabbis. This class surveys when, how, and why this became an accepted and standard Jewish division. We will also hear the voices of those who rejected this system and, on the other hand, those who embraced it. Dedicated in memory of Yaakov Koppel ben Elimelech Hakohen Dividing Tanach into Chapters: A Historical Overview

92

Debating the Death Penalty

Feb 15, 2023

1:10:58

In 1615, the Jewish community in Poland was confronted with a disturbing accusation of murder against one of its members. At the time, contemporary rabbis engaged in a dialogue on the most suitable course of action, debating whether the accused should face capital punishment. This discussion provides insight into the methods employed by rabbinic courts in addressing grave criminal offenses like murder and the criteria they applied in determining when the death penalty was a justifiable judicial response. Additionally, this analysis remains relevant today, as it prompts us to evaluate whether any of these principles and teachings have the potential to inform contemporary debates on the death penalty. Debating the Death Penalty

93

History and Development of the Talmudic Page

Feb 22, 2023

1:05:06

Join us on a journey through the rich history of Talmudic manuscripts and print editions. You will learn that although we don’t have manuscripts that can be definitively dated to before the twelfth century, a discerning eye can use extant manuscripts to hear distinct echoes of much older ones. Delve into the fascinating stories linked to the little-known Spanish and Portuguese printings that coincided with the end of Jewish life on the Iberian Peninsula and to Soncino’s controversial decision to place Tosafos on the page of the Gemara. Discover the introduction of folio numbers by Daniel Bomberg, and join us in the search for the first rabbi to utilize this revolutionary system. Finally, we’ll delve into the heartbreaking story of the burning of the Talmud in 1553 and the draconian censorship that followed, culminating in the notorious Basel edition. This lecture was recorded live by Jewish Multimedia Library, a.k.a. JML, Melbourne, Australia. Many additional recordings are available from their website: www.jml.org.au. History and Development of the Talmudic Page

94

Zecher vs. Zeicher: Unraveling the Parshas Zachor Mystery

Mar 1, 2023

1:05:03

Join us on this episode as we explore the centuries-old debate surrounding the placement of a tzeirei or segol in the reading for Parshas Zachor. Through the lens of ancient codices and special editions of Chumash, we’ll investigate the origins of this confusion and the reasons why communities began reciting both versions. We’ll also uncover the more profound significance of this divergence and what it can teach us about spiritual growth. Zecher vs. Zeicher: Unraveling the Parshas Zachor Mystery

95

The King’s Prayer: A Controversial Statement by a 19th-Century Rabbi

Mar 15, 2023

1:06:40

In today’s episode, we will step back in time to explore the controversy that erupted when a famous rabbi made a controversial statement about Dovid Hamelech and the role of Tehilim in Jewish life. We will dive into the heated discourse and the familiar fault lines it revealed within the Jewish community. We will gain insight into the differing views on the function and place of Torah study versus other forms of Jewish worship and the divergent attitudes about the image of the tzaddik in Jewish life. The King’s Prayer: A Controversial Statement by a 19th-Century Rabbi

96

Vanished Hero: Exploring the Absence of Moshe in the Haggadah

Mar 22, 2023

1:14:01

Join us for an in-depth discussion exploring the enigmatic absence of Moshe’s name from the Haggadah text. While his name does appear once in the text, this fact alone may not entirely resolve the mystery. We will scrutinize various explanations that have been presented over the past two centuries and analyze what they reveal about their proponents. Vanished Hero: Exploring the Absence of Moshe in the Haggadah

97

First Edition: The Rebbe’s References to the 1485 Soncino Haggadah

Mar 29, 2023

57:04

In his commentary on the Haggadah, the Lubavitcher Rebbe referenced many different sources from the vast library of Judaism, but three of them stand out from a bibliographic perspective: three references to the first dated printed edition of the Haggadah. Join us as we learn more about this edition, its historical context, and how the Rebbe used it to sort out some of the famous questions relating to the mah nishtanah, dayeinu, and the wisdom of the wise son. First Edition: The Rebbe’s References to the 1485 Soncino Haggadah

98

The Fate of the Marranos

Apr 19, 2023

59:15

In 1636, the Sephardic Jewish community in Amsterdam was embroiled in a heated debate over the fate of their converso relatives residing as Christians in Spain and Portugal. Would those who refuse to emigrate to reembrace Judaism be denied entry into the World to Come? In this class, we will explore the rich tapestry of sources both sides invoked during this intriguing chapter in Jewish history. We will delve into the arguments presented by both sides, gaining insights into the religious and social complexities that confronted Sephardic Jewry during this period. The Fate of the Marranos

99

Censoring Rambam’s Mishneh Torah in Czarist Russia

Apr 26, 2023

1:01:21

In 1850, an unusual edition of Rambam’s Mishneh Torah was published in czarist Russia. A perusal of this work reveals that it was censored in a peculiar and unprecedented fashion. But what lies behind this story of suppression? Who was responsible for this censorship? And what does it reveal about the tensions in Jewish life at that time? Through a nuanced analysis of the key players and their motivations, we gain a deeper understanding of the internal and external challenges faced by the Jewish community in Czarist Russia in the mid-19th century. Censoring Rambam’s Mishneh Torah in Czarist Russia

100

Rashba’s Rebuttal: Defending Judaism in Medieval Barcelona

May 3, 2023

1:04:40

Rabbi Shlomo ben Aderes (Rashba) took a maximalist position about the eternality of mitzvos, arguing that none of them could ever be suspended, not even in the era of techiyas hameism. But a faction of his rabbinic peers dissented. In this class, we examine the primary sources that are central to this discourse and also analyze the underlying dynamics—namely, the attempt at the time of Christian missionaries to undermine Judaism. This exploration will show how the greatest rabbinic minds responded to this threat and grappled with the more controversial passages of the Talmud and Midrash. Rashba’s Rebuttal: Defending Judaism in Medieval Barcelona

Popular Shows by Mordechai Dinerman מרדכי דינרמן