Matthew 7:12
Everything, therefore, be it what it may, that you would have men do to you, do you also the same to them; for in this the Law and the Prophets are summed up.
Romans 13:8
Owe nothing to any one except mutual love; for he who loves his fellow man has satisfied the demands of Law.
Philippians 4:8
Finally, brethren, whatever is true, whatever wins respect, whatever is just, whatever is pure, whatever is lovable, whatever is of good repute--if there is any virtue or anything deemed worthy of praise--cherish the thought of these things.
1 Thessalonians 4:6
and that in this matter there be no encroaching on the rights of a brother Christian and no overreaching him. For the Lord is an avenger in all such cases, as we have already taught you and solemnly warned you.