Matthew 5:21-22

21Ye have heard that it was said to them of old time, Thou shalt not kill; and whoever shall kill shall be in danger of the judgment:1 22But I say to you, That whoever is angry with his brother without a cause shall be in danger of the judgment: and whoever shall say to his brother, Raca, shall be in danger of the council: but whoever shall say, Thou fool, shall be in danger of hell fire.2