  But even as they serve as “guarantees” of the future redemption, Judaism and Christianity also serve crucial roles, according to Rosenzweig, in realizing the actual redemption in the world. Here Rosenzweig introduces the conclusions he reached back in 1913 regarding the complementary roles Judaism and Christianity play in the world’s advance towards redemption. The Jewish people anticipates the ultimate redemption of the world within the closed, communal life it forges out of its intimate experience of relation with the divine. Christianity advances the cause of the actual redemption of the world, by uniting the globe through its message of divine love. While Christianity thus takes up the historical task of guiding the world towards redemption, it would lose its way, according to Rosenzweig, if the Jewish people did not perpetually serve as reminder, through its own communal anticipation of redemption, of the kind of unity before the divine for which the world is to strive.