When attempts were later made to speak systematically about God and to describe His nature, men became more talkative. They spoke of God's aseity , His being grounded in Himself; they spoke of God's infinity in space and time, and therefore of God's eternity. And men spoke on the other hand of God's holiness and righteousness, mercifulness and patience. We must be clear that whatever we say of God in such human concepts can never be more than an indication of Him; no such concept can really conceive the nature of God. God is inconceivable.

Karl Barth