Rabbi Zusya said that on the Day of Judgment, God would ask him, not why he had not been Moses, but why he had not been Zusya.
Before his death, Rabbi Zusya said "In the coming world, they will not ask me: 'Why were you not Moses?' They will ask me: 'Why were you not Zusya?
First of all, the Jewish religion has a great deal in common with the Christian religion because, as Rabbi Gillman points out in the show, Christianity is based on Judaism. Christ was Jewish.