Matthew 5:44

I, however, say to you--Love your enemies, and pray for those who persecute you,

1 Thessalonians 5:15

Take care that none of you ever pays back wrong for wrong, but always follow the kindest course with one another and with every one.

Luke 6:27-28

But to you who hear I say--Love your enemies, show kindness to those who hate you,

Romans 12:17-21

Never return injury for injury. Aim at doing what all men will recognize as honorable.

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
I, however, say to you--Love your enemies, and pray for those who persecute you,
Luke 6:27
But to you who hear I say--Love your enemies, show kindness to those who hate you,
Romans 12:17
Never return injury for injury. Aim at doing what all men will recognize as honorable.
1 Thessalonians 5:15
Take care that none of you ever pays back wrong for wrong, but always follow the kindest course with one another and with every one.