Ecclesiastes 5:2 - Be not rash with thy mouth, and let not thine heart be hasty to utter any thing before God: for God is in heaven, and thou upon earth: therefore let thy words be few.
Matthew 5:22 - But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoevershall say to his brother, Raca, shall be in danger of the council: but whosoevershall say, Thou fool, shall be in danger of hell fire.