Lamech

Lamech was a descendant of Cain, the son of Adam and Eve (Gen.4.18). He was the father of Jabal, Jubal, and Tubal-cain (Gen.4.20-22). Lamech is notable for being the first polygamist mentioned in the Bible, having married two women, Adah and Zillah (Gen.4.19). He is also known for his speech to his wives, in which he boasted about killing a man for wounding him and claimed that he would be avenged seventy-sevenfold, in contrast to the sevenfold vengeance promised to Cain (Gen.4.23-24). This speech suggests a progression of violence and a disregard for the sanctity of human life among Cain's descendants.