Proverbs 20:5

Deep waters are counsel in the heart of man; and a man of understanding will draw it out

Psalm 64:6

They will search out iniquities; they completed a search searched out: and a man drew near, and a deep heart.

Proverbs 18:4

Deep waters are the words of man's mouth, the fountain of wisdom a gushing stream.

1 Corinthians 2:11

For who of men knows the things of men except the spirit of man in him? so also the things of God no one knows, except the Spirit of God.

Treasury of Scripture Knowledge

Summary

Counsel in the heart of man is like deep water; but a man of understanding will draw it out.

Bible References

General references

Proverbs 18:4
Deep waters are the words of man's mouth, the fountain of wisdom a gushing stream.
Psalm 64:6
They will search out iniquities; they completed a search searched out: and a man drew near, and a deep heart.
1 Corinthians 2:11
For who of men knows the things of men except the spirit of man in him? so also the things of God no one knows, except the Spirit of God.