Moshe Feinstein (;
Lithuanian pronunciation: ''Moishe Fainshtein''; ; March 3, 1895 – March 23, 1986) was a Russian-born American
Orthodox Jewish
rabbi
A rabbi (; ) is a spiritual leader or religious teacher in Judaism. One becomes a rabbi by being ordained by another rabbi—known as ''semikha''—following a course of study of Jewish history and texts such as the Talmud. The basic form of t ...
, scholar, and ''
posek
In Jewish law, a ''posek'' ( , pl. ''poskim'', ) is a legal scholar who determines the application of ''halakha'', the Jewish religious laws derived from the written and Oral Torah, in cases of Jewish law where previous authorities are incon ...
'' (authority on ''
halakha
''Halakha'' ( ; , ), also Romanization of Hebrew, transliterated as ''halacha'', ''halakhah'', and ''halocho'' ( ), is the collective body of Judaism, Jewish religious laws that are derived from the Torah, Written and Oral Torah. ''Halakha'' is ...
''—Jewish law). He has been called the most famous Orthodox Jewish legal authority of the twentieth century and his rulings are often referenced in contemporary
rabbinic literature
Rabbinic literature, in its broadest sense, is the entire corpus of works authored by rabbis throughout Jewish history. The term typically refers to literature from the Talmudic era (70–640 CE), as opposed to medieval and modern rabbinic ...
. Feinstein served as president of the
Union of Orthodox Rabbis, Chairman of the Council of the
Moetzes Gedolei HaTorah of the
Agudath Israel of America
Agudath Israel of America (; also called the Agudah) is an American organization that represents Haredi Judaism, Haredi Orthodox Jews. It is loosely affiliated with the international World Agudath Israel. Agudah seeks to meet the needs of the Har ...
, and head of
Mesivtha Tifereth Jerusalem in New York.

Feinstein is commonly referred to simply as ''"Reb Moshe"''
[ (or ''"Rav Moshe"'').
]
Biography
Moshe Feinstein was born, according to the Hebrew calendar
The Hebrew calendar (), also called the Jewish calendar, is a lunisolar calendar used today for Jewish religious observance and as an official calendar of Israel. It determines the dates of Jewish holidays and other rituals, such as '' yahrze ...
, on Adar
Adar (Hebrew: , ; from Akkadian ''adaru'') is the sixth month of the civil year and the twelfth month of the religious year on the Hebrew calendar, roughly corresponding to the month of March in the Gregorian calendar. It is a month of 29 days. ...
7, 5655 in Uzda, near Minsk
Minsk (, ; , ) is the capital and largest city of Belarus, located on the Svislach (Berezina), Svislach and the now subterranean Nyamiha, Niamiha rivers. As the capital, Minsk has a special administrative status in Belarus and is the administra ...
, Belarus (then part of the Russian Empire
The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
). His father, David Feinstein, was the rabbi of Uzda and a great-grandson of the Vilna Gaon
Elijah ben Solomon Zalman, ( ''Rabbi Eliyahu ben Shlomo Zalman''), also known as the Vilna Gaon ( ''Der Vilner Goen''; ; or Elijah of Vilna, or by his Hebrew acronym Gr"a ("Gaon Rabbenu Eliyahu": "Our great teacher Elijah"; Sialiec, April 23, 172 ...
's brother. David Feinstein's father, Yechiel Michel Feinstein, was a Koidanover Chassid. His mother was a descendant of talmudist Yom-Tov Lipmann Heller
Rabbi Gershon Shaul Yom-Tov Lipmann ben Nathan ha-Levi Heller (c. 157919 August 1654), was a Bohemian rabbi and Talmudist, best known for writing a commentary on the Mishnah called the ''Tosefet Yom-Tov'' (1614–1617). Heller was one of the majo ...
, the Shlah HaKadosh, and Rashi
Shlomo Yitzchaki (; ; ; 13 July 1105) was a French rabbi who authored comprehensive commentaries on the Talmud and Hebrew Bible. He is commonly known by the List of rabbis known by acronyms, Rabbinic acronym Rashi ().
Born in Troyes, Rashi stud ...
. He studied with his father and in yeshiva
A yeshiva (; ; pl. , or ) is a traditional Jewish educational institution focused on the study of Rabbinic literature, primarily the Talmud and halacha (Jewish law), while Torah and Jewish philosophy are studied in parallel. The stu ...
s located in Slutsk
Slutsk is a town in Minsk Region, in central Belarus. It serves as the administrative center of Slutsk District, and is located on the Sluch (Belarus), Sluch River south of the capital Minsk. As of 2025, it has a population of 59,450.
Geography ...
, under Pesach Pruskin, and Shklov. He also had a close relationship with his uncle, Yaakov Kantrowitz, rabbi of Timkovichi, whom he greatly revered and considered his mentor. For the rest of his life, Feinstein considered Pruskin as his rebbe
A Rebbe () or Admor () is the spiritual leader in the Hasidic movement, and the personalities of its dynasties.Heilman, Samuel"The Rebbe and the Resurgence of Orthodox Judaism."''Religion and Spirituality (Audio)''. UCTV, 20 Oct 2011. web. ...
.
Feinstein was appointed rabbi of Lyuban, where he served for sixteen years. He married Shima Kustanovich in 1920 and had four children (Pesach Chaim, Fay Gittel, Shifra, and David) before leaving Europe. Pesach Chaim died in Europe, and another son, Reuven, was born in the United States. Under increasing pressure from the Soviet regime, he moved with his family to New York City in January 1937, where he lived for the rest of his life.
Settling on the Lower East Side
The Lower East Side, sometimes abbreviated as LES, is a historic neighborhood in the southeastern part of Manhattan in New York City. It is located roughly between the Bowery and the East River from Canal to Houston streets. Historically, it w ...
, Feinstein became the rosh yeshiva
Rosh yeshiva or Rosh Hayeshiva (, plural, pl. , '; Anglicized pl. ''rosh yeshivas'') is the title given to the dean of a yeshiva, a Jewish educational institution that focuses on the study of traditional religious texts, primarily the Talmud and th ...
of Mesivtha Tifereth Jerusalem. He later established a branch of the yeshiva in Staten Island, New York, now headed by his son Reuven. His son Dovid headed the Manhattan
Manhattan ( ) is the most densely populated and geographically smallest of the Boroughs of New York City, five boroughs of New York City. Coextensive with New York County, Manhattan is the County statistics of the United States#Smallest, larg ...
branch.
Feinstein was president of the Union of Orthodox Rabbis of the United States and Canada, and chaired the Moetzes Gedolei HaTorah of Agudath Israel of America
Agudath Israel of America (; also called the Agudah) is an American organization that represents Haredi Judaism, Haredi Orthodox Jews. It is loosely affiliated with the international World Agudath Israel. Agudah seeks to meet the needs of the Har ...
from the 1960s until his death. Feinstein also took an active leadership role in Israel's Chinuch Atzmai
Jewish education (, ''Chinuch'') is the transmission of the tenets, principles, and religious laws of Judaism. Jews value education, and the value of education is strongly embedded in Jewish culture. Judaism places a heavy emphasis on Torah s ...
.
Feinstein was recognized by many as the preeminent halakhic authority (''posek
In Jewish law, a ''posek'' ( , pl. ''poskim'', ) is a legal scholar who determines the application of ''halakha'', the Jewish religious laws derived from the written and Oral Torah, in cases of Jewish law where previous authorities are incon ...
'') of his generation; ruling on issues of Jewish law as they pertain to modern times. People from around the world called upon him to answer their most complicated halachic questions.
Halakhic authority
Owing to his prominence as an adjudicator of Jewish law, Feinstein was often asked to rule on very difficult questions, whereupon he often employed a number of innovative and controversial theories in arriving at his decisions. Soon after arriving in the United States, he established a reputation for handling business and labor disputes, writing about strikes, seniority, and fair competition. He later served as the chief halakhic authority for the Association of Orthodox Jewish Scientists, indicative of his expertise in Jewish medical ethics. In the medical arena, he opposed the early, unsuccessful heart transplants, although it has been reported off-the-record that in his later years, he allowed a person to receive a heart transplant (after the medical technique of preventing rejection was improved). On such matters, he often consulted with various scientific experts, including his son-in-law Moshe David Tendler, a professor of biology
Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth, History of life, origin, evolution, and ...
who served as a rosh yeshiva at Yeshiva University
Yeshiva University is a Private university, private Modern Orthodox Judaism, Orthodox Jewish university with four campuses in New York City. .
As one of the prominent leaders of American Orthodoxy, Feinstein issued opinions that clearly distanced his community from Conservative
Conservatism is a cultural, social, and political philosophy and ideology that seeks to promote and preserve traditional institutions, customs, and values. The central tenets of conservatism may vary in relation to the culture and civiliza ...
and Reform Judaism
Reform Judaism, also known as Liberal Judaism or Progressive Judaism, is a major Jewish religious movements, Jewish denomination that emphasizes the evolving nature of Judaism, the superiority of its Jewish ethics, ethical aspects to its ceremo ...
. He faced intense opposition from Hasidic
Hasidism () or Hasidic Judaism is a religious movement within Judaism that arose in the 18th century as a spiritual revival movement in contemporary Western Ukraine before spreading rapidly throughout Eastern Europe. Today, most of those aff ...
Orthodoxy on several controversial decisions, such as rulings on artificial insemination and mechitza. In the case of his position not to prohibit cigarette smoking
Tobacco smoking is the practice of burning tobacco and ingesting the resulting smoke. The smoke may be inhaled, as is done with cigarettes, or released from the mouth, as is generally done with pipes and cigars. The practice is believed to hav ...
, though he recommended against it and prohibited second-hand smoke, other Orthodox rabbinic authorities disagreed. Even while disagreeing with specific rulings, his detractors still considered him to be a leading decisor of Jewish law. The first volume of his ''Igrot Moshe'', a voluminous collection of his halakhic decisions, was published in 1959.
Death
Feinstein died on March 23, 1986 (13th of Adar
Adar (Hebrew: , ; from Akkadian ''adaru'') is the sixth month of the civil year and the twelfth month of the religious year on the Hebrew calendar, roughly corresponding to the month of March in the Gregorian calendar. It is a month of 29 days. ...
II, 5746). Over 20,000 people gathered to hear him eulogized in New York before he was flown to Israel
Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...
for burial. His funeral in Israel was delayed by a day due to mechanical problems with the plane carrying his coffin, which then had to return to New York. The funeral was said to be attended by between 200,000 and 250,000 people.
Feinstein was buried on Har HaMenuchot near his teacher, Isser Zalman Meltzer.
Prominent students
Feinstein's students included:
* Nisson Alpert, rabbi of Agudath Israel of Long Island, New York
* Avrohom Blumenkrantz (1944–2007), author of ''The Laws of Pesach''
* Elimelech Bluth, rabbi of Ahavas Achim of Kensington, Posek for Women’s League (now "Mekor"), '' Chai Lifeline'' and Camp Simcha
* Shimon Eider posek and author
* Dovid Feinstein, rosh yeshiva of Mesivtha Tifereth Jerusalem in New York City, his son
* Reuven Feinstein, rosh yeshiva of Yeshiva of Staten Island, New York, his son
* Shmuel Fuerst, dayan (judge of Chicago Rabbinical Council
* Ephraim Greenblatt, posek
* Nota Greenblatt Av Beis Din (chief judge) of Vaad Hakehilos of Memphis, Tennessee
* Jackie Mason, rabbi and comedian who played Rabbi Hyman Krustofsky on ''The Simpsons
''The Simpsons'' is an American animated sitcom created by Matt Groening and developed by Groening, James L. Brooks and Sam Simon for the Fox Broadcasting Company. It is a Satire (film and television), satirical depiction of American life ...
''
* Moshe Dovid Tendler (1926-2021), rosh yeshiva (dean) at Rabbi Isaac Elchanan Theological Seminary, his son-in-law
Works
Feinstein wrote approximately 2,000 responsa
''Responsa'' (plural of Latin , 'answer') comprise a body of written decisions and rulings given by legal scholars in response to questions addressed to them. In the modern era, the term is used to describe decisions and rulings made by scholars i ...
on a wide range of issues affecting Jewish practice in the modern era. Some responsa can also be found in his Talmudic commentary (''Dibrot Moshe''), some circulate informally, and 1,883 responsa were published in ''Igrot Moshe.'' Among Feinstein's works:
* '' Igrot Moshe''; (Epistles of Moshe); pronounced ''Igros Moshe'' by Yiddish speakers (such as Feinstein); halakhic responsa in 7 volumes published during his lifetime and widely referenced by contemporary halakhic authorities. The final, seventh volume was published in two different forms, the resulting variations found in a total of 65 responsa. An additional 2 volumes were published posthumously from manuscripts and oral dictations that were transcribed by others.
* ''Dibrot Moshe'' (Moshe's Words); pronounced ''Dibros Moshe'' by Yiddish speakers such as Feinstein himself; a 14 volume work of Talmud
The Talmud (; ) is the central text of Rabbinic Judaism and the primary source of Jewish religious law (''halakha'') and Jewish theology. Until the advent of Haskalah#Effects, modernity, in nearly all Jewish communities, the Talmud was the cen ...
ic novellae with additional volumes being published by the Feinstein Foundation and being coordinated by his grandson, Mordecai Tendler.
* ''Darash Moshe'' (Moshe Expounds, a reference to Leviticus 10:16), a posthumously published volume of novellae on the weekly synagogue Torah
The Torah ( , "Instruction", "Teaching" or "Law") is the compilation of the first five books of the Hebrew Bible, namely the books of Genesis, Exodus, Leviticus, Numbers and Deuteronomy. The Torah is also known as the Pentateuch () ...
reading. rtscroll subsequently translated this as a two-volume English work.* ''Kol Ram'' (High Voice); 3 volumes, printed in his lifetime by Avraham Fishelis, the director of his yeshiva.
Some of Feinstein's early works, including a commentary on the Jerusalem Talmud
The Jerusalem Talmud (, often for short) or Palestinian Talmud, also known as the Talmud of the Land of Israel, is a collection of rabbinic notes on the second-century Jewish oral tradition known as the Mishnah. Naming this version of the Talm ...
, were lost in Communist Russia, though his first writings are being prepared for publication by the Feinstein Foundation.
Feinstein is known for writing, in a number of places, that certain statements by prominent ''rishonim
''Rishonim'' (; ; sing. , ''Rishon'') were the leading rabbis and ''posek, poskim'' who lived approximately during the 11th to 15th centuries, in the era before the writing of the ''Shulchan Aruch'' (, "Set Table", a common printed code of Jewis ...
'' which Feinstein found theologically objectionable were not in fact written by those ''rishonim'', but rather inserted into the text by erring students. According to Rabbi Dovid Cohen of Brooklyn
Brooklyn is a Boroughs of New York City, borough of New York City located at the westernmost end of Long Island in the New York (state), State of New York. Formerly an independent city, the borough is coextensive with Kings County, one of twelv ...
, Feinstein attributed such comments to students as a way of politely rejecting statements by ''rishonim'' while still retaining full reverence for them as religious leaders of earlier generations.
Notes
References
Bibliography
*
*
* Ellenson, David. "Two Responsa of Rabbi Moshe Feinstein." ''American Jewish Archives Journal'', Volume LII, Nos. 1 and 2, Fall 2000–2001.
*
* Rabbi Shimon Finkelman, Rabbi Nosson Scherman. ''Reb Moshe: The Life and Ideals of HaGaon Rabbi Moshe Feinstein''. Brooklyn, NY: ArtScroll Mesorah, 1986. .
*
*
*
* _________. "Jewish education for women: Rabbi Moshe Feinstein's map of America." American Jewish history, 1995
* Rackman, Emanuel. "Halachic progress: Rabbi Moshe Feinstein's ''Igrot Moshe'' on ''Even ha-Ezer''" in Judaism 12 (1964), 365–373
*Robinson, Ira. "Because of our many sins: The contemporary Jewish world as reflected in the responsa of Moses Feinstein" 2001
* Rosner, Fred.
Rabbi Moshe Feinstein's Influence on Medical Halacha
'' Journal of Halacha and Contemporary Society''. No. XX, 1990
* __________. Rabbi Moshe Feinstein on the treatment of the terminally ill." ''Judaism''. Spring 37(2):188–98. 1988
* Rabbi Mordecai Tendler, interview with grandson of Rabbi Feinstein and shamash for 18 years.
* Warshofsky, Mark E. "Responsa and the Art of Writing: Three Examples from the Teshuvot of Rabbi Moshe Feinstein," in An American Rabbinate: A Festschrift for Walter Jacob Pittsburgh, Rodef Shalom Press, 2001
Download in PDF format
External links
Biography of Rabbi Moshe Feinstein
– A retrospective of Rav Moshe Feinstein's life, with recollections on his character as a person.
A complete biography of HaRav Moshe Feinstein zatsal
by Moshe Dovid Tendler (son-in-law of Rav Moshe Feinstein a"h)
* Most volumes of Igros Moshe are available for free a
hebrewbooks.org
A detailed listing with links to all freely available sections appears at Mi Yodeya
Quick-Reference List of the Section-Contents of Igros Moshe
{{DEFAULTSORT:Feinstein, Moshe
1895 births
1986 deaths
People from Uzda district
People from Igumensky Uyezd
Belarusian Haredi rabbis
Soviet emigrants to the United States
American Haredi rabbis
American people of Belarusian-Jewish descent
20th-century Russian rabbis
Bible commentators
20th-century American rabbis
Jewish medical ethics
Moetzes Gedolei HaTorah
People from the Lower East Side
Writers from Manhattan
Burials at Har HaMenuchot
Authors of books on Jewish law
Orthodox rabbis from New York City
Haredi poskim
Exponents of Jewish law