 You would be amazed at how many believers think they are practicing this but are not. Though we might think that we are choosing truth, all too often we're actually rejecting truth in the way we think. What we think about God, what we think about ourselves, what we think about those around us, what we think about sin, what we think about God's word. There are subtle forms of deception that are being corrected in all of us. And so we have to do as the scripture says. Fix your thoughts on what is true, thinking according to what God says.