What Did Jesus Say About Being Angry Without A Righteous Cause.?

You have heard that they said it of old time, you shall not kill, and whosoever shall kill shall be in danger of the judgment: 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, Raca, shall be in danger of the council: but whosoever shall say, you fool, shall be in danger of hellfire. Matthew 5 vs 21-22.