For what man knows the things of a man, save the spirit of man which is in him? even so the things of God knows no man, but the Spirit of God.
The spirit of man is the candle of the LORD, searching all the inward parts of the belly.
But God has revealed them to us by his Spirit: for the Spirit searches all things, yes, the deep things of God.
The heart is deceitful above all things, and desperately wicked: who can know it?
The heart knows his own bitterness; and a stranger does not intermeddle with his joy.
Counsel in the heart of man is like deep water; but a man of understanding will draw it out.
Have you heard the secret of God? and do you restrain wisdom to yourself?
For to one is given by the Spirit the word of wisdom; to another the word of knowledge by the same Spirit;