Matthew 5:21-24

21 "You have heard that it was said to the men of old, 'You shall not kill; and whoever kills shall be liable to judgment.'

22 But I say to you that every one who is angry with his brother shall be liable to judgment; whoever insults his brother shall be liable to the council, and whoever says, 'You fool!' shall be liable to the hell of fire.

23 So if you are offering your gift at the altar, and there remember that your brother has something against you,

24 leave your gift there before the altar and go; first be reconciled to your brother, and then come and offer your gift.