Matthew 5:21–22

21 Ye have heard that it was said by them of old time, Thou shalt not kill; and whosoever shall kill shall be in danger of the judgment: 22 But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Racac, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.