Moshe Feinstein

Moshe Feinstein (March 3, 1895 – March 23, 1986) was a Belarusian-born American Orthodox rabbi, scholar, and posek renowned as one of the foremost authorities on Jewish law in the 20th century. Born in Uzda near Minsk, he descended from notable rabbinic lineages and early demonstrated exceptional Talmudic aptitude, studying the Shulchan Aruch over 300 times and the Talmud more than 200 times. Feinstein's rulings, compiled in the multi-volume Iggerot Moshe, addressed contemporary challenges in medicine, technology, and daily observance, providing precedents that shaped Orthodox Jewish practice worldwide.

Appointed rabbi of Luban in 1921, Feinstein led the community until immigrating to the United States in 1937 amid rising persecution in Europe, where he assumed the role of rosh yeshiva at Mesivta Tifereth Jerusalem in New York City. There, he also served as president of the Union of Orthodox Rabbis and chairman of the Moetzes Gedolei HaTorah of Agudath Israel of America, guiding the preservation and adaptation of traditional Jewish scholarship in the American context. His approach balanced strict adherence to halakha with practical leniencies when supported by evidence, such as declaring U.S. government-supervised milk kosher in 1954 due to reliable oversight, which facilitated broader observance among American Jews.

Moshe Feinstein was born on March 3, 1895 (7 Adar I 5655), in the town of Uzda, located in the Minsk Governorate of the Russian Empire (present-day Belarus). His father, Rabbi David Feinstein, served as the chief rabbi of Uzda, a position that placed the family at the center of the local Jewish community's religious life. Rabbi David was a great-grandson of Rabbi Abraham, the brother of the Vilna Gaon (Elijah ben Solomon Zalman), linking the Feinstein lineage to one of the most influential figures in Lithuanian Jewish scholarship.

Feinstein's mother was Feige Gittel, daughter of a local rabbinic family, whose piety complemented her husband's scholarly rigor in shaping the household's observant environment. The family maintained a traditional Ashkenazi Jewish home amid the challenges of imperial Russia, where Jewish communities faced periodic restrictions and pogroms, fostering an emphasis on Torah study and halakhic adherence from Feinstein's earliest years. As the son of the town rabbi, young Moshe received his initial education under his father's direct guidance, immersing him in Talmudic texts and rabbinic literature within a setting that prioritized intellectual discipline over secular influences.

Moshe Feinstein received his initial rabbinic education at home from his father, Rabbi David Feinstein, who served as the rabbi of Uzda and employed the analytical Volozhin yeshiva curriculum, guiding him through three daily sedarim (study sessions) of the Talmud. This rigorous home study laid the foundation for Feinstein's deep textual proficiency, emphasizing precise analysis of Talmudic sources over pilpul (dialectical casuistry). By age 12, around 1907, he advanced to the Etz Chaim Yeshiva in Slutsk, where he studied under Rabbi Isser Zalman Meltzer for one year, focusing on advanced Talmudic and halakhic texts.