The following comment is inspired by Matthew 5:22. These three penalties that Jesus had mention, is all related from being angry. There is a difference in being just angry,and being angry for a legitimate reason.
If some one is just angry,they will say anything to hurt people,because they don't care,they are miserable and destructive.They are in danger of the judgment that God will give,and because they are saying words that hurts,such as Raca,which means worthless
in a bad way,they will face the Church Council.because they are just angry.