Beyond all these things put on love, which is the perfect bond of unity. Let the peace of Christ rule in your hearts, to which indeed you were called in one body; and be thankful. Let the word of Christ richly dwell within you, with all wisdom teaching and admonishing one another with psalms and hymns and spiritual songs, singing with thankfulness in your hearts to God. Whatever you do in word or deed, do all in the name of the Lord Jesus, giving thanks through Him to God the Father. (Colossians 3:14-17 NASB)

So, as those who have been chosen of God, holy and beloved, put on a heart of compassion, kindness, humility, gentleness and patience; bearing with one another, and forgiving each other, whoever has a complaint against anyone; just as the Lord forgave you, so also should you. (Colossians 3:12-13 NASB)

Do not lie to one another, since you laid aside the old self with its evil practices, and have put on the new self who is being renewed to a true knowledge according to the image of the One who created him - a renewal in which there is no distinction between Greek and Jew, circumcised and uncircumcised, barbarian, Scythian, slave and freeman, but Christ is all, and in all. (Colossians 3:9-11 NASB)

But now you also, put them all aside: anger, wrath, malice, slander, and abusive speech from your mouth. (Colossians 3:8 NASB)

​So also the tongue is a small part of the body, and yet it boasts of great things. See how great a forest is set aflame by such a small fire! (James 3:5 NASB)