The three religions with which it deals are so intimately related to one another that in a morphological classification they might be regarded as three branches of monotheistic religion in Western Asia and Europe. Christianity originated in a religious movement in Judaism and a Jewish Messianic sect, and though it soon separated from the parent stock, and in the Gentile world became a universal redemptive religion, it was to its inheritance from Judaism that it chiefly owed its religious and moral superiority. Mohammedanism owes its existence to the impression Jewish and, in smaller degree, Christian ideas made upon the mind of the Arabian prophet.