Proverbs 20:5

20:5 Counsel in a person’s heart is like deep water,

but an understanding person draws it out.

Proverbs 22:14

22:14 The mouth of an adulteress is like a deep pit;

the one against whom the Lord is angry will fall into it.

Proverbs 23:27

23:27 for a prostitute is like a deep pit;

a harlot is like a narrow well.