Genesis 4:24

24 If seven lives are to be taken as punishment for Cain's death, seventy-seven will be taken for Lamech's.

Genesis 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.

Genesis 4:24 In-Context

22 And Zillah gave birth to Tubal-cain, who is the father of every maker of cutting instruments of brass and iron: and the sister of Tubal-cain was Naamah.

23 And Lamech said to his wives, Adah and Zillah, give ear to my voice; you wives of Lamech, give attention to my words, for I would put a man to death for a wound, and a young man for a blow;

24 If seven lives are to be taken as punishment for Cain's death, seventy-seven will be taken for Lamech's.

25 And Adam had connection with his wife again, and she gave birth to a son to whom she gave the name of Seth: for she said, God has given me another seed in place of Abel, whom Cain put to death.

26 And Seth had a son, and he gave him the name of Enosh: at this time men first made use of the name of the Lord in worship.