Genesis 25:19

19 This is the history of the generations of Yitzchak, Avraham's son. Avraham became the father of Yitzchak.

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 These are the years of the life of Yishma'el: one hundred thirty-seven years. He gave up the spirit and died, and was gathered to his people.

18 They lived from Havilah to Shur that is before Mitzrayim, as you go toward Ashshur. He lived opposite all his relatives.

19 This is the history of the generations of Yitzchak, Avraham's son. Avraham became the father of Yitzchak.

20 Yitzchak was forty years old when he took Rivka, the daughter of Betu'el the Arammian of Paddan-Aram, the sister of Lavan the Arammian, to be his wife.

21 Yitzchak entreated the LORD for his wife, because she was barren. The LORD was entreated by him, and Rivka his wife conceived.