From Jesus’ Sermon on the Mountain
“Do not think that I have come to do away with the Law or the Prophets; I have not come to do away with them, but to complete them. For I tell you, until the heavens and the earth disappear, not even the smallest letter, nor one stroke of a letter, shall disappear from the Law until all is done. Whoever, therefore, breaks one of these commandments, even the least of them, and teaches others to do so, will be the least-esteemed in the Kingdom of Heaven; but whoever keeps them, and teaches others to do so, will be esteemed great in the Kingdom of Heaven. Indeed I tell you that, unless your religion is above that of the Teachers of the Law, and Pharisees, you will never enter the Kingdom of Heaven.
On Anger
“You have heard that to our ancestors it was said—
‘Thou shalt not commit murder,’
and
‘Whoever commits murder shall be liable to answer for it to the Court.’
I, however, say to you that any one who cherishes anger against his brother shall be liable to answer for it to the Court; and whoever pours contempt upon his brother shall be liable to answer for it to the High Council, while whoever calls down curses upon him shall be liable to answer for it in the fiery Pit. Therefore, when presenting your gift at the altar, if even there you remember that your brother has some grievance against you, leave your gift there, before the altar, go and be reconciled to your brother first, then come and present your gift. Be ready to make friends with your opponent, even when you meet him on your way to the court: for fear that he should hand you over to the judge, and the judge to his officer, and you should be thrown into prison. I tell you, you will not come out until you have paid the last penny.”
—Matthew.
A soft answer turneth away wrath: but a grievous word stirreth up anger.
—Proverbs.
I was angry with my friend:
I told my wrath, my wrath did end.
I was angry with my foe,
I told it not, my wrath did grow.
—William Blake.