Gen 4, 23-24 I have killed a man for wounding me

(Gen 4, 23-24) I have killed a man for wounding me

[23] Lamech said to his wives: "Adah and Zillah, hear my voice; wives of Lamech, listen to my utterance: I have killed a man for wounding me, a boy for bruising me. [24] If Cain is avenged sevenfold, then Lamech seventy-sevenfold."

(CCC 2261) Scripture specifies the prohibition contained in the fifth commandment: "Do not slay the innocent and the righteous" (Ex 23:7). The deliberate murder of an innocent person is gravely contrary to the dignity of the human being, to the golden rule, and to the holiness of the Creator. The law forbidding it is universally valid: it obliges each and everyone, always and everywhere. (CCC 2262) In the Sermon on the Mount, the Lord recalls the commandment, "You shall not kill" (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 (Cf. Mt 5:22-39; 5:44). He did not defend himself and told Peter to leave his sword in its sheath (Cf. Mt 26:52). (CCC 1933) This same duty extends to those who think or act differently from us. The teaching of Christ goes so far as to require the forgiveness of offenses. He extends the commandment of love, which is that of the New Law, to all enemies (Cf. Mt 5:43-44). Liberation in the spirit of the Gospel is incompatible with hatred of one's enemy as a person, but not with hatred of the evil that he does as an enemy.