But I tell you that anyone who is angry1 with his brother will be subject to judgment.2 Again, anyone who says to his brother, 'Raca, ' is answerable to the Sanhedrin.3 But anyone who says, 'You fool!' will be in danger of the fire of hell.4
References for Matthew 5:22
"Therefore, if you are offering your gift at the altar and there remember that your brother has something against you,
leave your gift there in front of the altar. First go and be reconciled to your brother; then come and offer your gift.