The Epistle of Paul the Apostle to the Romans

12:17 Recompense to no man evil for evil. 
Provide things honest in the sight of all men.

12:18 If it be possible, as much as lieth in you, 
live peaceably with all men.

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.

12:20 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.

12:21 Be not overcome of evil, but overcome evil with good.