The father and super-powered son are framed in front of a Christian church (note the cross on the tower or steeple in the background).
Later on this same page, Superman mentions "the solid, moral foundation my foster parents gave" him. Maggin, an observant Jew who is one of Superman's most popular and influential contemporary chroniclers, stated in a 1998 interview that Clark Kent and the entire family are Methodists.
Many writers and fans believed this denominational affiliation best captures and explains the character as he has been portrayed over the years.This does not mean, however, that the adult Superman attends weekly church services (he does not).If asked if he is a Methodist, the adult Superman would not answer "no," but he would defer answering such a pointedly denominational question by suggesting that he respects people of all faiths and backgrounds and considers himself a servant of all humanity.Throughout all of his incarnations, Superman has maintained his rural Midwestern Protestant upbringing, although rarely have the words "Protestant" or "Christian" been explicitly attached to his background.Superman is sometimes spoken of as being "Jewish." This may be an attempt to honor the fact that the writer and artist who created the character were Jewish.
I've fought against and alongside beings who call themselves "New Gods" as well as "old gods" of Greek myth . He has written two Superman novels (Last Son Of Krypton and Miracle Monday, both which are currently out of print) as well as numerous other stories, articles, interviews and projects. Bruce and Batman are both Episcopalian and I said so in the text though it was edited out erroneously. Superman is something else, but I never did buy all that Kryptonian "Great Rao" nonsense.