In the book of Romans
Chapter 12 verses 17-21

Paul writes,  17)” Never repay injury with injury.   See that your conduct is honorable in the eyes of all. 18)If possible live peaceably with everyone. 19)Beloved, do not avenge yourselves; leave that to God’s wrath, for it is written:”‘vengeance is mine; I will repay,’ says the Lord.” 20)But “if your enemy is hungry, feed him; if he is thirsty, give him something to drink; by doing this you will heap burning coals upon his head.” 21) Do not be conquered by evil but conquer evil with good.