 In his "Bet Yehudah" (1837), he formulated a philosophy and described Jewish contributions to civilization in an effort to promote Judeo-Christian understanding.His father, Judah Levin, was a grandson of Jekuthiel Solomon, who settled in Kremenetz and acquired considerable wealth, and a son of Isaac, who had married the daughter of Zalman Cohen, famed for his wealth and scholarship.Levinsohn's father was a wealthy merchant and was popular among Jews and Gentiles alike.