Bereshis 4:24

24 If Kayin (Cain) shall be avenged sevenfold, truly Lamech seventy and seven times over.

Bereshis 4:24 Meaning and Commentary

Genesis 4:24

If Cain shall be avenged sevenfold, truly Lamech seventy
and sevenfold.
] Which if understood of him as confessing and lamenting his sin of murder, the sense is, if Cain was so severely punished for killing one man, of how much sorer punishment am I deserving, and shall have, who have killed two persons, and that after I had seen the punishment of Cain, and yet took no warning by it? or if he that killed Cain, who slew his brother, was to be avenged sevenfold, or to seven generations, then how much more, or longer, shall he be avenged, that shall slay me, who have slain none, or however not designedly; and therefore you may be easy and quiet, your fears, either from God or man, are groundless.

Bereshis 4:24 In-Context

22 And Tzilah, she also bore Tuval-Kayin, a forger of every cutting tool of nechoshet and barzel; and the achot of Tuval-Kayin was Naamah.

23 And Lamech said unto his wives, Adah and Tzilah, Hear my voice; ye wives of Lamech, give heed to my speech; for I have slain an ish for my wounding, and a yeled for my chabburah (see Ga.6:17).

24 If Kayin (Cain) shall be avenged sevenfold, truly Lamech seventy and seven times over.

25 And Adam knew his isha again; and she bore a ben, and called shmo Shet; for Elohim, said she, hath appointed me another zera in place of Hevel, whom Kayin killed.

26 And to Shet, to him also there was born a ben; and he called shmo Enosh; then began men to call upon the Shem of Hashem.