Siegel and Shuster were both Jewish, but they wrote their comic for a wider audience, borrowing Jewish ideas about the Messiah, but applying them to a character who would be a savior not just for the Jewish people, but for all people: one who brings Tikkun Olam through repairing the world. Did Siegel and Shuster know they were modeling Superman on Jesus? ~ Superman: The Jewish Man of Steel
ED Noor: How could they perform a Brit Milah (Bris) on Superbaby? What earthly implement could possibly snip his flesh? What mohel would be capable to perform this rite upon the child of steel?