But I tell you that anyone who is angry with a brother or sister will be subject to judgment. Again, anyone who says to a brother or sister, 'Raca,' is answerable to the Sanhedrin. And anyone who says, 'You fool!' will be in danger of the fire of hell.
NIV
But I say to you that everyone who continues to be angry with his brother or harbors malice (enmity of heart) against him shall be liable to and unable to escape the punishment imposed by the court; and whoever speaks contemptuously and insultingly to his brother shall be liable to and unable to escape the punishment imposed by the Sanhedrin, and whoever says, You cursed fool! [You empty-headed idiot!] shall be liable to and unable to escape the hell (Gehenna) of fire.
AMP
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.
KJV