Matthew Henry on 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, Mat 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 meat with men, at least not with strangers, but confined themselves to their own apartments; therefore Sarah is here out of sight: but she must not be out of hearing. The angels enquire (Gen 18:9), Where is…
Read the whole note in the consoleJamieson-Fausset-Brown on Genesis 18:12
Therefore Sarah laughed within herself--Long delay seems to have weakened faith. Sarah treated the announcement as incredible, and when taxed with the silent sneer, she added falsehood to distrust. It was an aggravated offense (Act 5:4), and nothing but grace saved her (Rom 9:18).
Adam Clarke on Genesis 18:14
Is any thing too hard for the Lord? - היפלא מיהוה דבר hayippale meihovah dabar, shall a word (or thing) be wonderful from the Lord? i.e., Can any thing be too great a miracle for him to effect? The Septuagint translate the passage, Μη αδυνατησει παρα τῳ Θεῳ ῥημα; which St. Luke adopts almost literatim, only making it an affirmative position instead of a question: Ουκ αδυνατησει παρα τῳ Θεῳ παν ῥημα, which we translate, "With God nothing shall be impossible," Luk 1:37. Many copies of the Septuagint insert the word παν before ῥημα, as in St. Luke; but it makes little difference in the sense. It was to correct Sarah's unbelief, and to strengthen her faith, that God spoke these most impor…
Read the whole note in the consoleJohn Gill on Genesis 18:15
Then Sarah denied, saying, I laughed not,.... Some render the words, "Sarah lied" (z); and indeed it was no other than a lie, to say she did not laugh when she did; which she might be tempted to say in her confusion, partly because the back of the speaker was to her, and he could not see her, and partly because it was inward, and very little at least discoverable in her countenance:
for she was afraid; of the reproof of her husband; and of the charge of ill manners to a stranger; and especially as she had reason to believe that it was the Lord himself that had spoken these words, and therefore could gladly have excused herself, and wiped off the reproach:
and he said, nay, but thou didst l…