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 and seven years; and he gave up the ghost and died, and was gathered unto his people.

18 And they dwelt from Havilah unto Shur, that is before Egypt as thou goest toward Assyria; and he died in the presence 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 Rebekah for a wife, the daughter of Bethuel the Syrian of Padanaram, the sister of Laban the Syrian.

21 And Isaac entreated the LORD for his wife, because she was barren; and the LORD was entreated by him, and Rebekah his wife conceived.