I would expect a lot of people to behave differently if they really believed in God and Heaven, or at least, the part about burning in eternity.
Sure, but that wasn't exactly my point. He said in an earlier post that he can't see why murder or rape is wrong if his god doesn't exist. So if this god doesn't exist and he knows it, why does he agree with Voltaire that such a god should be made up?
Or would he refrain from murdering and raping although he knows that this god is just a figment of someones imagination?