Any man that asks for proof of God that man will in truth be in deep trouble, but not in deep trouble for the good! Because in truth, one cannot see or know God away or apart from one very self if God is not already in one as part of one!
Thus to ask for proof of God is to ask another to show the father of the first without knowing the father of the first and any proof of God is not proof at all if he that asks for proof knows not of God! And that is not all! God is truly knowable because God is true knowledge, but God is truly knowable through one through the very knowledge that one presents to God!