Proverbs 27:21-23

New Living Translation

²¹ Fire tests the purity of silver and gold,
    but a person is tested by being praised.^[a]

²² You cannot separate fools from their foolishness,
    even though you grind them like grain with mortar and pestle.

²³ Know the state of your flocks,
    and put your heart into caring for your herds,