John Gills Exposition of the Bible Commentary - Genesis 18:11
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 F23 ... read more
Matthew Henry's Complete Commentary - Genesis 18:9-15
These heavenly guests (being sent to confirm the promise lately made to Abraham, that he should have a son by Sarah), while they are receiving Abraham's kind entertainment, they return his kindness. He receives angels, and has angels? rewards, a gracious message from heaven, Matt. 10:41. I. Care is taken that Sarah should be within hearing. She must conceive by faith, and therefore the promise must be made to her, Heb. 11:11. It was the modest usage of that time that the women did not sit at... read more