Proverbs 25:19-21

Amplified Bible

¹⁹ 
Like a broken tooth or an unsteady foot
Is confidence in an unfaithful man in time of trouble.
²⁰ 
Like one who takes off a garment in cold weather, or like [a reactive, useless mixture of] vinegar on soda,
Is he who [thoughtlessly] sings [joyful] songs to a heavy heart.^(A)
21 
If your enemy is hungry, give him bread to eat;
And if he is thirsty, give him water to drink;^(B)