Judaism's idea of the messiah differs substantially from the Christian idea of the Messiah. In Orthodox Judaism, the messiah's task is to bring in the Messianic Age, a one-time event, and a presumed messiah who is killed before completing the task (i.e. compelling all of Israel to walk in the way of Torah, repairing the breaches in observance, fighting the wars of God, building the Temple in its place, gathering in the dispersed exiles of Israel) is not the messiah. Maimonides states,