Genesis 21:7

“And she said, who would have said unto Abraham, etc.] No one a year ago could ever have thought of such a thing, much less have come and told Abraham that he should have a child or children by Sarah; the thing was incredible, and next to impossible; none but God himself, or an angel from him, could have declared this, as none but he could bring it about, the thing is so marvellous and astonishing: that Sarah should have given children suck? that she who was ninety years of age should bear a child, and suckle it, as she did; and in doing which she set an example to her daughters to do the like, since neither age nor grandeur, nor the business of her family, were any objection to this duty of…”