Even if there should be a God, which there probably isn't, why should we assume that this is some personal God. Maybe God is a spark of energy, electromagnetism, or something that we humans are too stupid and primitive to begin to understand. But, in that case, God would not be a personal God. God would not know you, care what you do, know what you think, punish you if you are bad, etc. That kind of God is completely out of the realm of logic.