Verses 18, 19. - And Peleg lived thirty years, and begat Reu. Friend (cf. of God, or of men), or friendship; from a root signifying to pasture, to tend, to care for. Bochart traces his descendants in the great Nisaean plain Ragan (Judith 1:6), situated on the confines of Armenia and Media, and having, according to Strabo, a city named Ragae or Ragiae. And Peleg lived after he begat Reu two hundred and nine years (thus making his entire age 239 years), and begat sons and daughters.
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.
And Peleg lived thirty years, and begat Reu. Or Ragau, as he is called in the Septuagint version, the letter being pronounced as a "G", as in Gaza and Gomorrah: he is supposed to give name to a large plain called Ragau, near Assyria, about Tigris and Euphrates,"Even in those days king Nabuchodonosor made war with king Arphaxad in the great plain, which is the plain in the borders of Ragau.'' (Judith 1:5)and to Ragis in Media,"In that day Tobit remembered the money which he had committed to Gabael in Rages of Media,'' (Tobit 4:1)where Strabo (f) makes mention of a city of the same name.
(f) Geograph. l. 11. p. 354.