Genesis 18:11
Now Abraham and Sarah were old and well stricken in age; and it ceased to be with Sarah after the manner of women.
Now Abraham and Sarah were old, and well stricken in age,.... The one being ninety nine years of age, and the other eighty nine; and which is observed to make it the more surprising that they should have a son at such an age; and what follows still makes it more so:
and it ceased to be with Sarah after the manner of women; her monthly visitors had left her, so that she was unfit for conception, and there could be no hope of it in a natural way; though the philosopher {w} intimates, that there are some, that it is possible, may conceive without them.
{w} Aristot. Hist. Animal. l. 7. c. 2.
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