Matthew 7:12
Therefore, you must always treat other people as you would like to have them treat you, for this sums up the Law and the Prophets.
Romans 1:30
They are gossips, slanderers, abhorrent to God, insolent, overbearing, boastful, ingenious in evil, undutiful,
Romans 12:17
Do not pay anyone back with evil for evil. See that you are above reproach in the eyes of everyone.
Romans 13:10
Love never wrongs a neighbor, and so love fully satisfies the Law.
Titus 3:2
to abuse nobody, to be peaceable and reasonable, showing perfect gentleness to everyone.
James 4:11
Do not talk against one another, brothers. Whoever talks against a brother or condemns his brother talks against the Law, and condemns the Law. But if you condemn the Law you are not an observer of the Law but its judge.
1 Peter 2:1-2
Free yourselves, therefore, from all malice, deceit, hypocrisy, envy, and slander of any kind,
3 John 1:11
Dear friend, do not follow bad examples, but good ones. The man who does right is a child of God; the man who does wrong has never seen God.