Matthew 5:19-21

New Revised Standard Version, Anglicised Catholic Edition

¹⁹ Therefore, whoever breaks^[a] one of the least of these commandments, and teaches others to do the same, will be called least in the kingdom of heaven; but whoever does them and teaches them will be called great in the kingdom of heaven. ²⁰ For I tell you, unless your righteousness exceeds that of the scribes and Pharisees, you will never enter the kingdom of heaven.

Concerning Anger

²¹ ‘You have heard that it was said to those of ancient times, “You shall not murder”; and “whoever murders shall be liable to judgement.”