Proverbs 26:6-8

New Revised Standard Version Catholic Edition

⁶ It is like cutting off one’s foot and drinking down violence,
    to send a message by a fool.
⁷ The legs of a disabled person hang limp;
    so does a proverb in the mouth of a fool.
⁸ It is like binding a stone in a sling
    to give honor to a fool.