DIG: What truth is emphasized by the phrase: and then he died? If the line of Cain focuses on sin, what does the line of Seth focus on? What is the one exception to the reign of death (see 5:24)?
Seth is the second generation and means foundation. When Seth had lived 105 years, he became the father of Enosh. And after he became the father of Enosh, Seth lived 807 years and had other sons and daughters. Each had many sons and daughters causing the earth to be populated. Altogether, Seth lived 912 years. The genealogy serves to highlight the consequences of sin by its incessant chorus, and then he died. They all die. Adam was blessed with a long life, but he passed along his sin nature to his son. It is a terminal disease: Just as sin entered the world through one man, and death through sin, and in this way death came to all men, because all have sinned (Romans 5:12).