Ephesians 4:29-31

And never let ugly or hateful words come from your mouth, but instead let your words become beautiful gifts that encourage others; do this by speaking words of grace to help them. The Holy Spirit of God has sealed you in Jesus Christ until you experience your full salvation. So never grieve the Spirit of God or take for granted his holy influence in your life. Lay aside bitter words, temper tantrums, revenge, profanity, and insults.