Excuse the pun, but it'd be of biblical proportions!
Harlan on religion and belief (bolding mine -- just because I love Ellison's way of wording things)...
In the clue book for the computer version of I Have No Mouth, and I Must Scream, Harlan is interviewed by J. Michael Straczynski(?)...
JMS: <...> do you believe that we are alone in the universe?
HE: Do I believe we are alone...How could I know? Look, I'm an atheist.
People say to me, do you believe in God? No, I don't believe in God. Because all the Gods that they offer me are completely as crazy as AM in this game. Every god that I've ever heard of, with the exception...if I had to pick a religion, I'd pick Buddhism. Buddhism is a kindly religion. It says you got a chance...it's got humor, it's got wisdom, it says to be nice to each other. All the rest of them have gods that want to beat the crap out of you if you defy the rules. I don't believe that, I'm not an imbecile, I'm not a moron. I have to have some proof of something.
When I look at Fundamentalists, I just want, I don't know, hit them in the kisser with a pie. But in fact they rule most of this country, which is kind of sad. I know we're really going to get in trouble on this tape. They're going to edit the hell out of this, god...you know the president of Cyberdreams will see this and his hair will stand on end. I am a pragmatist, I believe in Ockham's razor which says, 'go with the most logical answer, it's probably right.' Occasionally you get fooled, occasionally you get fooled. But we know there is no pelucidar in the center of the earth. We've gotten back seismic readings. We know. We know very well that...that ain't a face on Mars. I don't give a damn how many people, 'It's a face on Mars.' You know, your Momma's face is on Mars. All it is, is a shadow or whatever it is...a rock structure. There's no life on Mars. We may, eventually, someday find life or it may find us, but that's a long way off. It would seem to me it is more in our, more to our benefit to worry about how, learning how to live with each other, which we haven't learned how to do very well, since the dawn of recorded history...than worrying about how the hell were going to deal with creatures with pointy little heads that come down here and want to give us enemas. I hate being so rational, I know that people would love to have me say that, 'I believe that Whitley Streiber did get taken aboard a flying saucer.' No, I think Whitley Streiber, probably a very nice man, is self-delusional. I mean he really believes that by this time, and also it's made him quite a lot of money. But I don't think he did it for the money, I think he really actually believes that. The same way that Joan of Arc thought God talked to her.
But God has more important things to do than talk to little French girls in jail. And has more things to do than give you hair growing on the palm on your hand if you masturbate. http://www.celebatheists.com/index.php?title=Harlan_Ellison