Cain Killed by Lamech: Cain is said to have a descendant by the name of Lamech (Gen. 4:18-24). At one point Lamech says to his wives:

Adah and Zillah, hear my voice; you wives of Lamech, hearken to what I say: I have slain a man for wounding me, and a young man for striking me. If Cain is avenged sevenfold, then Lamech seventy-sevenfold.

These words are difficult to explain: who was the "man" whom Lamech claims to have killed? The Bible says nothing about such a murder. Ancient interpreters came to the conclusion that the "man" here was the same "man" referred to in Gen. 4:1, namely, Cain; he thus died at the hand of his own offspring, indeed, seven generations after the death of Abel (as the "sevenfold" of Gen. 4:15 and 23 had been interpreted by some). This basic interpretation came to be elaborated: Lamech was a giant hunter who killed Cain by accident after Cain's horns (his "sign") had been mistaken for those of a wild animal.