The chapter begins by recalling that God made humanity in his likeness, male and female, and blessed them. At 130 years old, Adam fathers a son in his own likeness, Seth, and lives 930 years in all. From there the text repeats the same pattern for each generation: how old he was when he fathered his son, how long he lived afterward, other sons and daughters, and finally that he died.
The list continues with Seth, Enosh, Kenan, Mahalalel and Jared, whose lifespans run from 895 to 962 years. The seventh from Adam is Enoch, and with him the pattern breaks: instead of saying he died, the text says he walked with God and was no more, because God took him, after 365 years. His son Methuselah lives 969 years, the longest in the biblical record.
Lamech, Noah's father, gives him that name hoping he will bring relief from the work and pain caused by the ground the Lord cursed. Lamech lives 777 years. Noah is 500 years old when Shem, Ham and Japheth are born, and so the chapter ends, ready for the story of the flood.