Proverbs 20:15-17

International Standard Version

¹⁵ There is an abundance of gold and precious stones,
    but lips of knowledge are a rare jewel.

¹⁶ Take the garment of anyone who puts up collateral for a stranger;
    hold it in pledge if he does it for an unfamiliar woman.

¹⁷ Bread gained by deceit is sweet to a man,
    but later his mouth will be full of gravel.