Classes by Mordechai Dinerman

How and when did the bris take the shape we recognize today? When did the sandek and kvatter enter the ceremony, and what do those words even mean? Today’s class traces the development of the bris in Ashkenaz between the twelfth and fifteenth centuries. We’ll explore the origins and context of its specialized terms, the deals people made to secure coveted honors, a controversial practice that the Maharam of Rothenburg protested for years without success, and the role women played in the ceremony. Along the way, we’ll examine a panel painted around 1300 that brings at least one version of the medieval bris into sharper focus. Click here for the handout What An Honor! The History and Evolution of the Sandek and Kvatter

Today we pick up where we left off: it's just before Rosh Hashanah 1904, and Rabbi Akiva Yosef Shlesinger's plan to sound the shofar on Shabbos looks promising. Today we find out what actually happened that Rosh Hashanah and why, and how the conversation carried on through the following year, up to Rosh Hashanah 1905, which was also on Shabbos. And finally, we’ll reach the last scene of the story: the conversation leading up to Rosh Hashanah 1908. As we go, we'll see how the balance of Rabbi Shlesinger's reasoning shifted, and we’ll also examine how some of his colleagues answered him on his own terms.  Click here for the handout A Blast From the Past: The Shabbos Shofar Showdown in the Early 1900s (Part II)

As Jews prepared for Rosh Hashanah 1904, Rabbi Akiva Yosef Shlesinger took up his pen and wrote to a rabbinic journal in Hungary, laying out why he believed the shofar should be sounded on Shabbos despite the rabbinic ban. In this class, we examine his account of the attempt leading up to Rosh Hashanah 1882, and then again leading up to Rosh Hashanah 1904. We'll trace the steps he took, the halachic and extra-halachic reasoning behind them, and how other famous rabbis reacted. Click here for the handout A Blast From the Past: The Shabbos Shofar Showdown in the Early 1900s (Part I)

A man wrote to the Tzemach Tzedek, the third Rebbe of Chabad, about fears he couldn’t shake in matters of health and money. What came back was a long letter working through Torah sources to explain how fear takes hold and how to loosen its grip. This class takes this remarkable letter line by line, setting the scene, tracing the sources, and drawing out what it asks of us today.⁠Click here for the handout ⁠A Chasidic Letter on Anxiety

HaRav Levi Yitzchak Schneerson spent his final years in exile in Kazakhstan, banished there by the Soviets for his work strengthening Jewish life across the Soviet Union. Soon after arriving there in 1940, he wrote a brief account of his imprisonment. It reads like no ordinary memoir: each line is a kabbalistic commentary on his own life, shaped by a deep belief in personal divine providence. Gathering to honor his yahrzeit on the twentieth of Av, we studied this account and worked to unpack its esoteric terms. It isn’t the easiest material to understand, but it does paint a vivid picture of this special leader and his worldview. Click here to follow along in the original Reshima HaRav Levi Yitzchak, In His Own Words: A Commemorative Study