You shall ask yourself: “Who has borne me these, when I was bereft and barren? Exiled and repudiated, who has reared them? I was left all alone; where then do these come from?”
Raise a glad cry, you barren one who never bore a child, break forth in jubilant song, you who have never been in labor, For more numerous are the children of the deserted wife than the children of her who has a husband, says the Lord.
By faith he received power to generate, even though he was past the normal age—and Sarah herself was sterile—for he thought that the one who had made the promise was trustworthy.