Let your speech always be gracious. - Colossians 4:6
The tongue can bring death or life. - Proverbs 18:21
A new command I give you: Love one another. As I have loved you, so you must love one another. - John 13:34
Do to others whatever you would like them to do to you. This is the essence of all that is taught in the law and the prophets. - Matthew 7:12