Proverbs 25:19-21

New International Version

¹⁹ Like a broken tooth or a lame foot
    is reliance on the unfaithful in a time of trouble.
²⁰ Like one who takes away a garment on a cold day,
    or like vinegar poured on a wound,
    is one who sings songs to a heavy heart.

²¹ If your enemy is hungry, give him food to eat;
    if he is thirsty, give him water to drink.