Matthew 5:44

But I tell you, love your enemies and pray for those who persecute you,

1 Thessalonians 5:15

Make sure that no one does anything wrong to someone who wrongs him, but always look for something good you can do for one another and for everyone.

Luke 6:27-28

But I tell you people who are listening [to me], love your enemies and do good things to those who hate you.

Romans 12:17-21

Do not [try to] pay back a wrong done to you by doing something wrong to the other person. Think about how to live honorably in front of all people.

Treasury of Scripture Knowledge

Summary

If thou meet thine enemy's ox or his ass going astray, thou shalt surely bring it back to him again.

Bible References

General references

Matthew 5:44
But I tell you, love your enemies and pray for those who persecute you,
Luke 6:27
But I tell you people who are listening [to me], love your enemies and do good things to those who hate you.
Romans 12:17
Do not [try to] pay back a wrong done to you by doing something wrong to the other person. Think about how to live honorably in front of all people.
1 Thessalonians 5:15
Make sure that no one does anything wrong to someone who wrongs him, but always look for something good you can do for one another and for everyone.