J. David Bleich

Herbert and Florence Tenzer Professor of Jewish Law and Ethics


B.A. 1960, Brooklyn College
M.A, 1968, Columbia University
Ph.D. 1974, New York University

Areas of Expertise

Jewish Law


Dr. Bleich is professor of Talmud (Rosh Yeshiva) at Rabbi Isaac Elchanan Theological Seminary, an affiliate of Yeshiva University, and is head of its postgraduate institute for the study of Talmudic jurisprudence and family law. Among his published works are: Jewish Bioethics; With Perfect Faith: Foundations of Jewish Belief; Contemporary Halakhic Problems (five volumes); Time of Death in Jewish Law; Judaism and Healing; and Bioethical Dilemmas: A Jewish Perspective (two volumes), as well as the Hebrew-language Be-Netivot ha-Halakhah. He was a Woodrow Wilson Fellow and a postdoctoral fellow at the Hastings Center. He is a fellow of the Academy of Jewish Philosophy and a member of the Governor's Commission on Life and the Law.



Be-Netivot ha-Halakhah. Volume IV.  Yeshiva University Press, New York, N.Y., 2011.

Contemporary Halakhic Problems, Volume VI. Ktav Publishing House, Newark, N.J., 2012.

The Philosophical Quest: Of Philosophy, Ethics, Law and Halakhah. The RIETS Hashkafah Series.  Yeshiva University Press/Koren. Jerusalem, 2013.



“The Infinite Value of Jewish Life in Judaism,” The Value of Human Life: Contemporary Perspectives in Jewish Medical Ethics.  Ed. by Refoel Guggenheim,Leonardo Leupin, Yves Nordmann and Raphael Patcas.  Jerusalem, 2010. 

“Pre-Implantation: Genetic Diagnosis and Jewish Law,” The Value of Human Life: Contemporary Perspectives in Jewish Medical Ethics.  Ed. by Refoel Guggenheim, Leonardo Leupin, Yves Normann and Raphael Patcas.  Jerusalem, 2010.

“Hetter Iska, the Permissible Venture: A Device to Avoid the Prohibition Against Interest-Bearing Loans,” The Oxford Handbook of Judaism and Economics. Ed. by Aaron Levine.  Oxford, England, 2010.

“The Problem of Identity in Rashi, Rambam and the Tosafists,” Between Rashi and Maimondies: Themes in Medieval Jewish Throught, Literature and Exegesis, Ed. by Ephraim Kanarfogel and Moshe Sokolow.  New York, 2010.

“Sacrificing the Few to Save the Many” (reprint)Contending with Catastrophe:Jewish Perspectives on September 11thEd. by Michael J. Broyde.  New York, 2011.

 “The Jewish Legal Tradition” (with Arthur Jacobson), Cambridge Companion to Contemporary Law. Ed. by Mauro Bussani and Ugo Mattei.  Cambridge, England, 2012.




“Sacrificing the Few to Save the Many,” Spring, 2010

“The Metaphysics of Property Interests in Jewish Law: An Analysis of Kinyan,”    Summer, 2010

“Laser Circumcision,” Fall, 2010

“Piscatorial Parasites” Spring, 2011

“Entering a Non-Jewish House of Worship,” Summer, 2011

“May a Sabbath-Desicrator Drink Wine?” Fall, 2011   

“Spontaneous Generation and Halakhic Inerrancy,” Winter, 2011

“Substitution of Lottery Tickets,” Spring, 2012

“Products Liability,” Spring, 2012

“Video Surveillance,” Summer, 2012

“Resurrection and Personal Identity,” Fall, 2012

“Seclusion Under Video Surveillance,” Winter, 2012

“The Paradox of R. Chanina ben Teradion,” Winter, 2012

“Liability for the Harm Caused by Metaphysical Forces,” Spring, 2013

Hamez in Lake Kinneret and in the Croton Reservior,” Summer, 2013

“Harvesting Wheat for Mazah When and Where?” Fall, 2013

International Journal of the Jurisprudence of the Family

"Family Values in the Jewish Tradition,” Vol. I, (pp. 113-132) (2010)

“Support of Non-Biological Children in Jewish Law” Vol. 3 (pp. 61-84) (2012)

Comparative Law Reporter

“Is There an Ethic Beyond Halakhah?” (reprint) Vol. I, no. I, pp. 1-13 (2010)



Bet Yitzhak

“Bizu’a u-Pesharah shel Aharon,” 2010

“Gemirat Da’at al-pi Nihuta de-Mizvah ve-al-pi Dina de-Malkhuta,” 2010

“Halva’ah Tzemudah Le-Hityakrut Haba’ah Mahmat Ribuy Shtarei Kessef,” 2011

“Be-Geder Hezkat Hiyyuv” (In Press)

Sha’arei Zedek

“Zayin Tuivei ha-Ir ke-Bet Din be-Iram o-ke-Melekh be-Iram,” Vol. XIII, 2012.

“Havrahat Mekhes” Vol. XIV, 2013.


Contact Information


Cardozo School of Law
55 Fifth Avenue, Room 517
New York, NY 10003

Office Hours
Mon.11 a.m. - 12 p.m. 
Thurs. 11 a.m. - 12 p.m.