John Gills Exposition of the Bible Commentary - Genesis 18:12
Therefore Sarah laughed within herself ,.... Not for joy of a son, and as pleased with it, believing so it would be; but as disbelieving it, and perhaps deriding it, and confuting it with a laugh, which, though it did not appear in her countenance, was secretly in her heart: saying , not with her mouth, but in her mind: after I am waxed old , being almost ninety years of age: shall I have pleasure ? in conception, or rather in having a son, and in suckling and nursing him, and... 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