CCC 2262

In the Sermon on the Mount, the Lord recalls the commandment, "You shall not kill,"⁶² Mt 5:21. and adds to it the proscription of anger, hatred, and vengeance. Going further, Christ asks his disciples to turn the other cheek, to love their enemies.⁶³ Cf. Mt 5:22-39; 5:44. He did not defend himself and told Peter to leave his sword in its sheath.⁶⁴ Cf. Mt 26:52.