11 For who among men knoweth the things of a man, but the spirit of the man which is in him? even so the things of God knoweth no one but the Spirit of God.
1 Corinthians 2:11 Cross References - Noyes
Romans 11:33-34
1 Corinthians 2:10
10 For God hath revealed them to us by his Spirit; for the Spirit searcheth all things, even the depths of God.