Proverbs 20:5
"Counsel in the heart of man is like deep water; but a man of understanding will draw it out."
Cross References (ranked by relevance)
1 Corinthians 2:11
18
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.
Proverbs 18:4
18
The words of a man’s mouth are as deep waters, and the wellspring of wisdom as a flowing brook.
Psalm 64:6
12
They search out iniquities; they accomplish a diligent search: both the inward thought of every one of them, and the heart, is deep.