(Rom. 12:19) "Dearly beloved, avenge not yourselves, but rather give place unto wrath: for it is written, Vengeance is mine; I will repay, saith the Lord." The above verse is one of those verses that's easier read than practiced. In our flesh we desire retribution for wrongs that have been done unto us, and sometimes we see it happen in life, but more often than not wrongs seem to go unpunished. It would be nice in life if every situation ended up like a happy movie, but the main reason that it doesn't is because God desires for us to learn to love people despite the outcome. I think that we forget sometimes that the weapons of our warfare are spiritual not carnal. We have been called as believers to "overcome evil with good," to "recompense to no man evil for evil." The Christian must remember at all times that the outcome of any evil attack in this world can be turned into God's glory if we just remember to love rather than hate, to seek peace first rather than war, and to do good back to those who do bad to us. In this life we may not see vengeance upon our enemies, but if we practice the love of Christ we will see the blessing of God upon our obedience and lives.Vengeance will never produce the same outcome as God's love.
