Matthew 5:22-24 NIV

[22] 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. [23] “Therefore, if you are offering your gift at the altar and there remember that your brother or sister has something against you, [24] leave your gift there in front of the altar. First go and be reconciled to them; then come and offer your gift.