^IIRC, he grew up in the Methodist church and doesn't adhere to any particular church nowadays. The Stand
definitely has a lot of Christian influence in it. Here's a bit from an interview he did a few years ago:
I was struck by a great deal of religious connotation and biblical imagery in Dark Tower. I've seen it in a lot of your other stuff, but it's certainly very obvious here. Where are you going with that? What do you want to say that you're not saying?
SK: I don't know. I think that I am saying most of what I want to say. Above all else, I'm interested in good and evil. And I'm interested in the question about whether or not there are powers of good and powers of evil that exist outside ourselves. I think that the concept of evil is something that's in the human heart. The goodness in the human heart is probably more interesting, psychologically, but in terms of myth, the idea that there are forces of evil and forces of good outside, and because I was raised in a fairly strict religious home, not hard-shelled Baptist or anything like that, I tend to coalesce those concepts around God symbols and devil symbols, and I put them in my work.
JB: What kind of background did you come from if it wasn't "hard-shelled Baptist?"
SK: Hard-nosed Methodist.
JB: So you weren't into really evangelical, fundi kinds of things.
JB: But you clearly learned your Bible.
SK: Yeah, I clearly learned my Bible, and I took a lot of what it says to heart enough to be disgusted by the Jim and Tammy Baker's and the Rex Humbug's of the world, where it says 'when you pray go inside your closet and shut the door and do it by yourself, don't do it in front of everybody so that everybody will know how religious you are.' I'm really sort of impressed by something that C. S. Lewis said about The Rings trilogy, Tolkien's Lord of the Rings trilogy, where he said, "as good as Tolkien was at depicting good, he was much more effective at depicting evil." I think that that's true, and I think that it's easier for all of us to grasp evil, because it's a simpler concept, and good is so many-faceted and it's so layered. I've always tried to contrast that bright, white light of real goodness or Godliness against evil. I'm not a proselytizer, and I hate organized religion. I think it's one of the roots of real evil that's in our world. If you really unmask Satan, you'll probably find that he's wearing a turnaround collar.
JB: What do you mean by organized religion? How do you define that?
SK: Well, when they start telling you when you're supposed to be on your knees and when you're supposed to be standing up and when you look at the front of the building and you see there's a list of the hymns you're going to sing, that's organized religion. And when they start to band you together and say, "these are the magazines you're not supposed to buy in the 7-Eleven," that's organized religion. And sooner or later, it always overspills into political issues. Jesus said, "Render those things under to Caesar that are Caesar's and render unto God the things that are God's," and - I don't know, that scripture keeps getting overlooked by these guys who want to do Moral Majority and all the rest of it. You can't operate in those terms. You've got the man in black in this book that looks like a priest, who does messianic things. He raises the dead. But to no good purpose. At least when Jesus rose from the dead he had the good grace to hang around for a while and then get the hell out. He didn't do a TV show or hang around like the weed-eater, Norton, in the book. He got offstage. It's an interesting thing. I heard somebody say once at some kind of New Testament conference that I was at a few years ago, that when Jesus rose Lazarus from the dead, he took everybody to the graveyard and said, "Lazarus, come forth!" If he'd just said "Come forth!" everybody in the graveyard would have gotten up and walked. Can you imagine that? How's that for a horror story?Source