Proverbs 30:13

10 Do not slander a servant to his master, lest he curse you, and you be held guilty.

11 There are those who curse their fathers and do not bless their mothers. 12 There are those who are clean in their own eyes but are not washed of their filth. 13 There are those—how lofty are their eyes, how high their eyelids lift! 14 There are those whose teeth are swords, whose fangs are knives, to devour the poor from off the earth, the needy from among mankind.

15 The leech has two daughters: Give and Give. Three things are never satisfied; four never say, “Enough”: 16 Sheol, the barren womb, the land never satisfied with water, and the fire that never says, “Enough.”