Matthew 5:22

22 But I tell you that anyone who is angry with a brother or sisterab will be subject to judgment. Again, anyone who says to a brother or sister, ‘Raca,’c is answerable to the court. And anyone who says, ‘You fool!’ will be in danger of the fire of hell.

Read Matthew 5:22 Using Other Translations

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.
But I say to you that everyone who is angry with his brother will be liable to judgment; whoever insults his brother will be liable to the council; and whoever says, 'You fool!' will be liable to the hell of fire.
But I say, if you are even angry with someone, you are subject to judgment! If you call someone an idiot, you are in danger of being brought before the court. And if you curse someone, you are in danger of the fires of hell.