Proverbs 25:18-22

A man that beareth false witness against his neighbour Is a maul, and a sword, and a sharp arrow. Confidence in an unfaithful man in time of trouble Is like a broken tooth, and a foot out of joint. As he that taketh away a garment in cold weather, and as vinegar upon nitre, So is he that singeth songs to an heavy heart. If thine enemy be hungry, give him bread to eat; And if he be thirsty, give him water to drink: For thou shalt heap coals of fire upon his head, And the LORD shall reward thee.