Love Your Enemies, Proverbs 25:21-22

If your enemy is hungry, give him bread to eat, and if he is thirsty, give him water to drink, for you will heap burning coals on his head, and the LORD will reward you.
Proverbs 25:21-22

There are truly wicked people in the world, but most people who do evil actually believe they're doing good. They are deceived and interpret the world through warped lenses. It's good to hold people accountable and to protect the innocent, but vengeance will only compound the evil that's done to you, distorting your own vision in the process.

You have heard that it was said, 'You shall love your neighbor and hate your enemy.' But I say to you, Love your enemies and pray for those who persecute you, so that you may be sons of your Father who is in heaven. For he makes his sun rise on the evil and on the good, and sends rain on the just and on the unjust. For if you love those who love you, what reward do you have? Do not even the tax collectors do the same? And if you greet only your brothers, what more are you doing than others? Do not even the Gentiles do the same? You therefore must be perfect, as your heavenly Father is perfect.
Matthew 5:43-48

Repay no one evil for evil, but give thought to do what is honorable in the sight of all. If possible, so far as it depends on you, live peaceably with all. Beloved, never avenge yourselves, but leave it to the wrath of God, for it is written, "Vengeance is mine, I will repay, says the Lord." To the contrary, "if your enemy is hungry, feed him; if he is thirsty, give him something to drink; for by so doing you will heap burning coals on his head." Do not be overcome by evil, but overcome evil with good.
Romans 12:17-21

From Jay Carper at http://www.AmericanTorah.com.