I don't understand why Christians (and any other deity-driven religion) can't see this logical flaw, and what I will propose kind of turns Pascal's Wager on its head in a different way. In the wager, we are told to just believe anyway just in case because while we may give up a human life of freedom, we'll have an eternal afterlife.
Let's suppose there is a god, and for familiarity we'll use YHWH or the big JC. In the grand scheme of things, the lifespan of a human being is but a fraction of a fraction of a fraction of time when compared with eternity, yes? Why would any deity, who reportedly has been in existence forever and will be around forever, be concerned with humans believing he's real while we're on earth?
When you consider the alternative, that after death your soul would be eternal and could then be shown that god exists, you would clearly be a believer then and the payoff for god's ginormous ego would be limitless. Why would he leave it up to some shoddy book, a small population of uneducated goat-herders and the ensuing molesters and thieves to provide his proof? And for that matter, if he loves being worshipped or believed in, why wouldn't he just give us a choice after we died? Wouldn't he reveal himself to us and say, "It's me, believe or not?"
He would have so many believers and it would be for eternity. If he's truly the insecure egomaniac he's portrayed as in the bible, wouldn't he forgive "just in case" and reap the benefits of eternal belief by giving us proof after death? We'll call it God's Wager.
If you ask a believer this simple question, they'll say, "God is all about that faith, 'bout that faith, no reason. He's all about that faith, 'bout that faith, no reason."