Matthew 5:22, KJV says
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, Thou fool, shall be in danger of hell fire.
The final two clauses are separated by ": but" which indicates that they are in contrast with each other. Hell seems worse than "the council" - does this mean that saying "you fool" is worse than calling someone a forbidden term of contempt ("Raca?")