샌프란시스코장로교신학대학원, 버클리연합신학원(Graduate Theological Union) 명예교수. 독일 튜빙겐 에버하르드-칼스대학교 신학박사(신약학). 예루살렘 히브리대학교 랍비문헌 연구. 미국 남가주대학교(University of Southern California) 종교학부 교수 역임.

저서
The Origin and Destiny of Humanness: An Interpretation of the Gospel According to Matthew (1976), Praying the Lord’s Prayer: An Ageless Prayer for Today (1999), The Letter to the Romans. Salvation as Justice and the Deconstruction of Law (2011), Christianity as the Moral Order of Integration: The Gift of the Jews to the World (2023) 외 다수.