If you think belief in god is based on proof...wow. Just wow.
How does one prove their personal version of an omnipotent, omniscient and thus incomrehensible being? Its beyond absurd to make such an assertion. You believe what you believe on faith or not at all...there is no proof.
There are many things beyond our comprehension - many beings as well.
All we can go by is by what they have declared to us - Which is why the deist god is such a cop out - Something intangible, undetectable, and non-participatory is exactly the sort of god one would have if one subscribes to the humanist position (which necessarily is 'do as thou wilt' in the end, and evidence of the true god that they serve, not that he is ever true.).
All others have thrown their hat in the ring by way of declarations through their agents. and demonstrations of miracles and power. Study those things, and you will find but one of unchanging law and character. You will find one who demonstrates that he, and only he, knows the end from the beginning. The proof, ultimately, is in the prophecy.
But my God is tangible (to everyone, at least indirectly, as he declares) and participatory. I follow in his way, because his way is easy to discern: His tracks are different from the others, due to the scars from the nails that pierced his feet.
To say it well would be a long, long conversation, which I would happily entertain, but which does not belong here, according to the ruleset we operate under.