Genesis 25:19

19 And these are the generations of Isaac, Abraham's son. Abraham begot Isaac.

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 are the years of the life of Ishmael: a hundred and thirty-seven years; and he expired and died, and was gathered to his peoples.

18 And they dwelt from Havilah to Shur, which is opposite to Egypt, as one goes towards Assyria. He settled before the face of all his brethren.

19 And these are the generations of Isaac, Abraham's son. Abraham begot Isaac.

20 And Isaac was forty years old when he took Rebecca as wife, the daughter of Bethuel the Syrian of Padan-Aram, the sister of Laban the Syrian.

21 And Isaac entreated Jehovah for his wife, because she was barren; and Jehovah was entreated of him, and Rebecca his wife conceived.