the fact that eric kripke isn't even christian really adds something to the way christianity is depicted on supernatural. because its really not about being christian at all, but about living in america, a country dominated by christianity, and having to decide for yourself how to handle that. faith is huge in supernatural, and the mythology of the show is very bible-centric, but notably, christ is never there. even sam, who starts out revering the angels, who once said he prays every night, doesn't actually call himself a christian or imply that he believes in jesus--the show is steeped in christianity and biblical lore and yet neither sam nor dean are christians. in fact, over and over again the church itself is depicted as a haunted house that sam and dean will only ever enter as strangers, as outsiders. priests, preachers, faith healers, chapels, crypts, etc. are all just iconography that create an intense sense of unease that sam and dean respond to instantly. as a jew, its very relatable. an essential part of living in america when you're not christian is that exact sense of unease, of knowing that the culture of your country has ensured that you'll get knocked over by christianity no matter where you go, that you'll see hundreds of people truly believing they're good people while doing awful things in the name of their god, and you have no choice but to confront that. kripke gets it