Classes by Mordechai Dinerman

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

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

It’s truly astonishing: the Shulchan Aruch, the most important work of Jewish law, doesn’t codify the mitzvah of ahavas Yisrael and many of its related laws, including rechilus, lashon hara, nekamah, and others. In this class, we’ll examine the background and history that may help us come to grips with this curious omission.

The Missing Section in the Shulchan Aruch

In today’s episode, we turn our attention to the dispute over the Rambam’s works that took place in Europe in 1232. The controversy revolved around Rambam’s Moreh Nevuchim and Sefer Hamada, and it culminated in these works being banned and eventually burned. What was it about these works that were so controversial? What social factors led to the appalling book burning? And who was responsible for this? Some of the greatest rabbis of the day were involved in this story. By delving into their writings, we hope to disentangle fact from fiction and learn about the central themes that emerged from this dispute.

Banned and Burned: The 1232 Controversy Surrounding Rambam’s Works

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 | Replay

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

Over the past century, significant changes have occurred in the area of women’s Torah education, but a vibrant and ongoing debate about this subject persists. By exploring the treatment of this matter in the Talmudic sources and throughout Jewish history, we aim to gain a deeper understanding of the current landscape, the factors that have shaped it, and the pathways that lie ahead.

Women and the Study of Talmud

Step back in time as we delve into a fascinating story about the Jewish communities of Cologne and Mayence around the period of the First Crusade. We will learn of an uproar caused by an extension to a synagogue adorned with imagery of lions and snakes. We will examine the halachic discussion of whether this violated the command against graven images.

The Lion and the Snake: Tensions Over Artistic Expression in the Medieval Sanctuary

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