And Arphaxad lived - The Septuagint bring in here a second Cainan, with an addition of one hundred and thirty years. St. Luke follows the Septuagint, and brings in the same person in the same way. But the Hebrew text, both here and in 1 Chronicles 1:1-28, is perfectly silent on this subject, and the best chronologists have agreed in rejecting this as a spurious generation.

And Arphaxad lived thirty five years, and begat Salah. Arphaxad is the first on record that had a son born to him so early; of Salah; see Gill on Genesis 10:24.

And Arphaxad lived five and thirty years, and begat Salah:

11:10-26 Here is a genealogy, or list of names, ending in Abram, the friend of God, and thus leading towards Christ, the promised Seed, who was the son of Abram. Nothing is left upon record but their names and ages; the Holy Ghost seeming to hasten through them to the history of Abram. How little do we know of those that are gone before us in this world, even of those that lived in the same places where we live, as we likewise know little of those who now live in distant places! We have enough to do to mind our own work. When the earth began to be peopled, men's lives began to shorten; this was the wise disposal of Providence.