Quote by D.A. Carson

“Among “knowing” beings—humans, angels, God—there are high barriers that keep one knowing being from understanding fully what another knowing being is thinking about. No matter how well I know you, I will never know all your thoughts; no matter how well you know me, you will never know all of mine. How much less shall we understand the thoughts of the angel Gabriel when, say, he spoke to Mary (Luke 1:26–38). However, the one “knowing being” who knows all thoughts, even the thoughts of God, is God himself. Or, to put it another way, “The Spirit searches all things, even the deep things of God” (2:10b).”