The Feast and the Fast - The Dramatic Personal Story of Yom Tov Lipman Heller by Neil Rosenstein, Prepared by Rabbi Lipschitz - 1984

Moria Ofset, 1984. New. Between 1614 and 1617 Rabbi Heller published a Mishnah commentary, Tosafot Yom Tov, in three volumes The commentary quickly became established as one of the standard commentaries to the Mishnah and is studied to this day His commentary is an important complement to the commentary of Bartenura (Tosafot to Bartenura's Rashi, as it were – hence the title)

Heller's major halakhic work was Ma`adanei Yom Tov, a commentary to the summary of the Babylonian Talmud by Rabbi Asher ben Jehiel Rabbi Asher's summary was often taken by German Jews of Heller's day to be the most authoritative statement of Jewish law, even in preference to the Shulchan Aruch Heller's introduction to the work endorses that view Heller's halakhic views, mainly on matters of ritual, are quoted by many later rabbis, especially those of Prague

Among Heller's many minor works are sermons and responsa He also wrote two sets of piyyutim The first set from 1621, commemorates the Defenestration of Prague and the beginning of the Thirty Years' War, and the escape of the Prague Jews from the sack of Prague by Habsburg troops after the Battle of White Mountain in 1620 The second set of poems, written in 1650, commemorates the Cossack massacres of 1648-1649
Heller was a kabbalist, and even wrote kabbalistic work, a commentary on Rabenu Bahya ben Asher, based on the kabbalistic views of Moses Cordovero But throughout most of his life, Heller was opposed to the popularization of the kabbalah, and the use of kabbalistic reasoning in matters of Jewish law
Among rabbis of his generation, Heller was exceptionally well versed in the secular sciences His Talmudic works and his sermons show that he was interested in questions of arithmetic, astronomy, and natural science His notes on the Giv'at ha Moreh of Joseph ben Isaac ha-Levi prove he occupied himself with philosophy He praised the Me'or 'Enayim of Azariah dei Rossi in spite of the anathema that his master, Judah ben Bezalel, whom he held in great esteem, had launched against the book and its author His statement on the universal dignity of humanity is also notable, as is his openness to study of works by non-Jews One of his sermons alludes to the new astronomy of Copernicus and Tycho Brahe

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