1 Corinthians 2:12-16

12Now we have not received the spirit of the world, but the Spirit who is from God, so that we may know the things that are freely given to us by God.

13And we speak about these things, not with words taught us by human wisdom, but with those taught by the Spirit, explaining spiritual things to spiritual people.

14The unbeliever does not receive the things of the Spirit of God, for they are foolishness to him. And he cannot understand them, because they are spiritually discerned.

15The one who is spiritual discerns all things, yet he himself is understood by no one.

16For who has known the mind of the Lord, so as to advise him? But we have the mind of Christ.