In Ephesians 4:29 the Bible says, “Don’t use foul or abusive language. Let everything you say be good and helpful, so that your words will be an encouragement to those who hear them.”
In Romans 12:14 we are told, “Bless those who persecute you. Don’t curse them; pray that God will bless them.”
In Proverbs 15:1 it says, “A gentle answer turns away wrath, but a harsh word stirs up anger.