Therefore if thine enemy hunger, feed him

Dearly beloved, avenge not yourselves, but rather give place unto wrath: for it is written, Vengeance is mine; I will repay, saith the Lord. Therefore if thine enemy hunger, feed him; if he thirst, give him drink: for in so doing thou shalt heap coals of fire on his head. Be not overcome of evil, but overcome evil with good.
—Romans 12:19-21

In his epistle to the Romans, the Apostle Paul is really driving home a crucial theme, and it thoroughly resonates from the teachings of Christ himself. We are to turn the other cheek, in the face of persecution and wrong committed against us, and trust the judge God of Heavens to justly judge the infractions of the evils perpetrated against us by the wicked and immoral. The Lord is the one true just judge. Every knee will bow and confess in His name, and we will give an account of our lives before Him one day. Abusive political authorities will be brought to account. Unruly husbands will be brought to account. Likewise, criminals will answer for their sins.

It is really in the millstone of affliction that one begins to fathom the grace, honor and glory of blessing and praying for an antagonist, particularly a bitter and unruly foe who greets us with mockery and scorn. It is an exercise of faith that we give place to wrath and trust the just God of Heaven to repay men for the iniquities they perpetrate against us.