And the days of Adam after he had begotten Seth were eight hundred years: and he begat sons and daughters:

And the days of Adam, after he begot Seth, were eight hundred years: and he begot sons and daughters.

And the days of Adam after he had begotten Seth were eight hundred years; and he begot sons and daughters.

And the days of Adam after his begetting Seth are eight hundred years, and he begetteth sons and daughters.

And after the birth of Seth, Adam went on living for eight hundred years, and had sons and daughters:

And after he conceived Seth, the days of Adam that passed were eight hundred years. And he conceived sons and daughters.

Et fuerunt dies Adam postquam genuit Seth, octingenti anni: et genuit filios et filias.

And the days of Adam after he had begotten Seth. In the number of years here recorded we must especially consider the long period which the patriarchs lived together. For through six successive ages, when the family of Seth had grown into a great people, the voice of Adam might daily resound, in order to renew the memory of the creation, the fall, and the punishment of man; to testify of the hope of salvation which remained after chastisement, and to recite the judgments of God, by which all might be instructed. After his death his sons might indeed deliver, as from hand to hand, what they had learned, to their descendants; but far more efficacious would be the instruction from the mouth of him, who had been himself the eyewitness of all these things. Yet so wonderful, and even monstrous, was the general obstinacy, that not even the sounder part of the human race could be retained in the obedience and the fear of God.

And the days of Adam, after he had begotten Seth, were eight hundred years,.... The Septuagint version is seven hundred; for having added one hundred years more the should be, to the years of his life before the birth of Seth, here they are taken away to make the number of his years complete:
and he begat sons and daughters; not only after the birth of Seth, but before, though we have no account of any, unless of Cain's wife; but what their number was is not certain, either before or after; some say he had thirty children, besides Cain, Abel, and Seth; and others a hundred (c). Josephus says the number of children, according to the old tradition, was thirty three sons and twenty three daughters. (d)(These families had at least five children, for one son is named as well as other sons and daughters. Therefore there must be at least three sons and two daughters in each family. For a family to have at least three sons and two daughters, according to the laws of chance, a family must on the average have nine children for this to be a near certainty. Hence the families listed in this chapter must have been large by today's standards. Given their long life, this is not at all unusual. However even today, the Old Order Mennonites of Waterloo County in Ontario and Lancaster County in Pennsylvannia, have many families this large. Ed.)
(c) Shalshalet Hakabala, fol. 74. 2. (d) Joseph. Antiqu. l. 1. c. 1. footnote on point 3.