Proverbs 25:19-21

Revised Standard Version

¹⁹ Trust in a faithless man in time of trouble
    is like a bad tooth or a foot that slips.
²⁰ He who sings songs to a heavy heart
    is like one who takes off a garment on a cold day,
    and like vinegar on a wound.^[a]
21 If your enemy is hungry, give him bread to eat;
    and if he is thirsty, give him water to drink;