Adam Clarke, on Gen 17:16

“And I will bless her, and of her I will give thee a son, whom I will bless, and he shall become nations, and kings of people shall spring from him.”

“I will bless her, etc. - Sarah certainly stands at the head of all the women of the Old Testament, on account of her extraordinary privileges. I am quite of Calmet's opinion that Sarah was a type of the blessed Virgin. St. Paul considers her a type of the New Testament and heavenly Jerusalem; and as all true believers are considered as the children of Abraham, so all faithful holy women are considered the daughters of Sarah, Gal 4:22, Gal 4:24, Gal 4:26. See also Pe1 3:6.”

Imported from an open dataset — not yet checked against the printed edition.