John 3:16: For God so loved the world, that he gave his only begotten son, that whosoever believeth in him should not perish, but have everlasting life.
To many fundamentalist, and some not-so fundamentalist, Christians, that's the key passage of the whole Bible. In fact we could narrow it down further. According to a quick Google search I just made, the King James Bible contains 774,746 words, but the whole essence of the fundamentalist belief can be narrowed down to just 0.0009% of the whole; seven words: "whosoever believeth in him should not perish."
Oh, they'll spout a lot of verbiage about good works and so forth, and shout from the roof-tops about living a sin-free life, but that's of secondary importance in the eyes of the god they kowtow to. In the end your chances of avoiding an eternity spinning on Satan's own spit-roast are absolutely nil, they say, unless you believe in Jesus as your personal saviour.
'Saviour': Now there's a telling word if ever there was one. The goal isn't, it implies, to get to Heaven. The goal is to be saved from Hell. The afterlife, to them, is not a promise but a threat. Fear, not hope, as Alistair MacLean might have put it, is the key to their belief. 'God-fearing Christian.' We hear the phrase so often that it loses the literal meaning; but what a disgusting, cowardly phrase it is, when examined! But I digress slightly.
What does this say about the morality and priorities of their god? Is he, maybe, interested in our well-being? Not that I can see. Not if a life-time of sinning can be discounted in light of a last-minute repentance and a quick death-bed conversion. He's certainly not interested in rewarding good works; not if all the charity and selflessness in the world doesn't even get you an interview with St Peter unless you also believe in Christ as a personal saviour.
This god isn't a judge of character; he's a judge of faith. He's not just; he's vain. He's not the loving father they like to proclaim he is; he's a sadistic vainglorious father who demands loyalty from his children, on quite literal pain of eternal punishment in the torture chamber he built in the basement.
It's sad, but true, that many fundamentalists will actually state quite proudly that the best-attested evidence in the world won't shift them from their faith in this 'loving' god. Well I call them spineless cowards. Not because they'd deny evidence that might trouble their word-view. Oh no, they're much more cowardly than that. They believe wholeheartedly in this sadistic bastard of a god, yet haven't the moral fortitude to stand up and say, 'I have better morals than this creature. I would never punish the good, nor let the evil walk free, merely based on whether they hold a belief about the afterlife.'
Well I say it. Show me all the evidence you like, prove to me that such a god exists, and I will look it straight in the eye and spit. If a human judge were to let Joseph Fritzl, that epitome of abusive fathers, walk free against all the evidence, then I would judge myself his moral superior and state that he has abrogated his right to be called a fit judge of human affairs. I see no real difference, bar one of scale, between these hypothetical human and godly judges. Both are morally inferior to me, and neither deserves my respect or my worship.
If there's an afterlife and a judgement, I demand and expect to be judged on my actions and their effect on those around me. My beliefs about the existence of these things cannot affect their reality by one iota, and no sane or just god would judge me based on something not under my control. Those, including gods, who demand respect and worship as their inborn right, are the least likely, in my experience, to deserve the respect and worship they crave. If this god truly did create me, then it also created my sense of human worth in this life, and of justice. If it cannot judge me by the same standards it instilled in me, then it can, to coin a phrase, go to hell.