No one could ever prove it. When I was a Christian, I'd cringe at other Christians who'd try to get me to see that God is provable. The Bible is proof, they'd say. It's not objective proof. After a lot of reflecting since then, and spending some time as an atheist, I find myself in tuned with Deism. It is a very different way of looking at a god, and it affords a person the chance to just be him/herself, unlike theism. Although Dawkins considers Deists to be watered down Theists. lol But, we won't go there. 
I can't prove my idea of god to anyone, and I don't bother trying.

I can't prove my idea of god to anyone, and I don't bother trying.