1 Peter 3:9
Not rendering evil for evil, or railing for railing, but contrariwise blessing; knowing that ye are called to this, to inherit a blessing.
Matthew 5:44
But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them that despitefully use you and persecute you:
Matthew 6:33
But seek ye first the kingdom of God and his righteousness, and all these things shall be added to you.
Romans 12:17-21
Mind not high, but condescend to low things. Be not wise in your own conceit. Render to no man evil for evil. Provide things honest in the sight of all men.