“See that no one repays another with evil for evil, but always seek after that which is good for one another and for all people.” (1 Thess. 5:15 NASB)
A Christian brings reproach on the Church and upon the name of the Lord, as well as discrediting himself when he repays evil for evil, wrong for wrong; but it is commendable and it honors God and brings honor to the name Christian when we repay good for evil.
“Never take your own revenge, beloved, but leave room for the wrath of God, for it is written, ‘VENGEANCE IS MINE, I WILL REPAY,‘ says the Lord. ‘BUT IF YOUR ENEMY IS HUNGRY, FEED HIM, AND IF HE IS THIRSTY, GIVE HIM A DRINK; FOR IN SO DOING YOU WILL HEAP BURNING COALS ON HIS HEAD.‘ Do not be overcome by evil, but overcome evil with good.” (Romans 12:19-21 NASB)