Romans 12:17-21
17 - Never wrongfully pay back anyone who has wronged you. Always have an honorable testimony before everyone.
18 - Be in harmony with everyone if you are able.
19 - The Bible teaches us that vengeance is God’s responsibility, not ours.
20 - Give your enemy food or drink if they need it. This will encourage them to goodness.
21 - Conquer evil with love.