1 Corinthians 2:11 in the King James Version
For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God.
Context
10 But to us, God revealed them through the Spirit. For the Spirit searches all things, yes, the deep things of God.
11 For who among men knows the things of a man except the spirit of the man which is in him? Even so, no one knows the things of God except God’s Spirit.
12 But we received not the spirit of the world, but the Spirit which is from God, that we might know the things that were freely given to us by God.