Proverbs 25:22
For thou shalt heap coals of fire upon his head, and the LORD shall reward thee.
Doing good to personal enemies is right and wise (Pr 25:21). It proves you are a child of God, for you show His general kindness, even to those who hate and mistreat you. It is the best way to treat enemies, for it either melts their hatred or hardens their wickedness. But regardless of their response to your kindness, the LORD will bless you for the deeds.
