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 hell fire.
All Commentaries on Matthew 5:22 Go To Matthew 5
Hilary of Poitiers
AD 368
“Whoever says to his brother, ‘Raca,’ shall be liable to the council.” One who reproaches with emptyheadedness someone who is filled with the Holy Spirit becomes liable to the council of holy men and is to expiate this outrage against the Holy Spirit through punishment handed down by the holy judges. “Whoever says, ‘You fool!’ shall be liable to the hell of fire.” … Thus whatever the law has not condemned as to a person’s works, the faith of the Gospels castigates because of one’s readiness simply to use insulting words.