Robert E. Lerner uncovers a strain of medieval millennial thought that conceived of a peaceful place for Jews at the end of time. Its proponents maintained that "the candelabra of the Church would return to the Synagogue" and that the millennial Church would celebrate the feasts of "Saint Abraham" and "Saint David." Rejecting the common assumption that all millenarians were of necessity anti-Jewish, Lerner reveals a Christian prophetic tradition that foresaw a world in which Jews and Gentiles would come together to mutual benefit.

As imagined by the twelfth century Calabrian Abbot Joachim of Fiore, God's plan, entailed a march of progress from Abraham until the wondrous transformation of human life upon the defeat of Antichrist. While the march of progress transpired on earth, a spiritual movement impelled God's chosen ones to heaven in phases, on a stairway to paradise. The divine plan had first entrusted the Jews with adherence to the letter of the Old Testament; then it had entrusted the Gentiles with the more spiritual New Testament. At the culmination of history, God would endow both Jews and Gentiles with a full understanding of both testaments. The word of God would return to the people from whence it came, and the Jews would be converted peacefully instead of damned.