Romans 12:19-21

19My friends, if someone has done bad things to you, do not try to punish them yourselves. Instead, let God be angry and punish them. This is what is written in the Bible: ‘The Lord God says, “When people do something wrong, I am the one who will punish them. I will pay them back.” ’

20But the Bible also says this: ‘If your enemy is hungry, feed him. If he is thirsty, give him something to drink. If you help your enemy, he will become ashamed. He will be sorry because of what he did to you.’

21Do not let evil things win against you! Instead, do good things. Then you will win against the evil things that people do.