When we get angry with a brother, we may even offend him. In the case of a brother who offends us, what should we do? We must call him with a spirit, humility and meekness.
You have heard that it was said to the people long ago, ‘You shall not murder, and anyone who murders will be subject to judgment.’
To introduce the topic of anger, Jesus mentions that in antiquity anyone who committed murder would be guilty of judgment. But later it teaches us that we can bring judgment without actually committing homicide:
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 court. And anyone who says, ‘You fool!’ will be in danger of the fire of hell