Genesis 25:19

19 And these the generations of Isaac the son of Abraam.

Genesis 25:19 Meaning and Commentary

Genesis 25:19

And these [are] the generations of Isaac, Abraham's son
Moses, having given the genealogy of Ishmael and his posterity, returns to Isaac, the other son of Abraham, with whom and his children the following part of his history is chiefly, if not altogether concerned: Abraham begat Isaac;
for the further confirmation of his being his proper legitimate son this clause is added.

Genesis 25:19 In-Context

17 And these the years of the life of Ismael, a hundred and thirty-seven years; and he failed and died, and was added to his fathers.
18 And he dwelt from Evilat to Sur, which is opposite Egypt, until one comes to the Assyrians; he dwelt in the presence of all his brethren.
19 And these the generations of Isaac the son of Abraam.
20 Abraam begot Isaac. And Isaac was forty years old when he took to wife Rebecca, daughter of Bathuel the Syrian, out of Syrian Mesopotamia, sister of Laban the Syrian.
21 And Isaac prayed the Lord concerning Rebecca his wife, because she was barren; and the Lord heard him, and his wife Rebecca conceived in her womb.

The Brenton translation of the Septuagint is in the public domain.