Atheists say there's a lack of proof with Christian claims. Well, I cannot really give the proof as I have a lack of religious knowledge. However, watch this movie ALL THE WAY THROUGH and you'll have your proof.
So... god is the current scientific ignorance. Years ago we didn't know how the planets moved, must be god. That was then actually figured out. You can't use a lack of knowledge as an argument for the existence of god. I could use the same argument and replace it with Satan and you couldn't prove me wrong.
You'll never prove or disprove god existing. Get over it.