WHO SAYS THERE IS A GOD? You?
Just for grins, you might consider the implications of God saying there is a God.
I do say that moral principles must originate from God, otherwise, there can't be any morals, only personal tastes. If the only logical source for morals is God, then that is evidence for God. Let me ask you - do you maek up your own moral rules or are there universal moral rules that exist independent of your beliefs?