God is a God of truth before he speaks to man. It’s important that we think about this. Otherwise we tend to think of God only in relation to us as if his attributes have no meaning or significance apart from us. This makes far too much of us. And it runs the risk of demeaning God’s self-sufficiency - that he is gloriously and absolutely God and true apart from us, and without us. - John Piper

The full text this quote was taken from can be found here.