Genesis 25:19

19 Now these are the generations of Abraham's son 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 the years of Ishmael's life were a hundred and thirty-seven: and he came to his end, and was put to rest with his people.

18 And their country was from Havilah to Shur which is east of Egypt: they took their place to the east of all their brothers.

19 Now these are the generations of Abraham's son Isaac:

20 Isaac was forty years old when he took Rebekah, the daughter of Bethuel the Aramaean of Paddan-aram, and the sister of Laban the Aramaean, to be his wife.

21 Isaac made prayer to the Lord for his wife because she had no children; and the Lord gave ear to his prayer, and Rebekah became with child.