1 Corinthians 2:10, 14
1 Corinthians 2:10 NASB1995
For to us God revealed them through the Spirit; for the Spirit searches all things, even the depths of God.
1 Corinthians 2:14 NASB1995
But a natural man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised.