9 They said to him, "Where is Sarah your wife?" And he said, "She is in the tent." 10 The Lord said, "I will surely return to you in the spring, and Sarah your wife shall have a son." And Sarah was listening at the tent door behind him. 11 Now Abraham and Sarah were old, advanced in age; it had ceased to be with Sarah after the manner of women. 12 So Sarah laughed to herself, saying, "After I have grown old, and my husband is old, shall I have pleasure?" 13 The Lord said to Abraham, "Why did Sarah laugh, and say, 'Shall I indeed bear a child, now that I am old?' 14 Is anything too hard for the Lord? At the appointed time I will return to you, in the spring, and Sarah shall have a son." 15 But Sarah denied, saying, "I did not laugh"; for she was afraid. He said, "No, but you did laugh."
16 Then the men set out from there, and they looked toward Sodom; and Abraham went with them to set them on their way. 17 The Lord said, "Shall I hide from Abraham what I am about to do, 18 seeing that Abraham shall become a great and mighty nation, and all the nations of the earth shall bless themselves by him? 19 No, for I have chosen him, that he may charge his children and his household after him to keep the way of the Lord by doing righteousness and justice; so that the Lord may bring to Abraham what he has promised him."
Matthew Henry's Commentary on Genesis 18:9-19
Commentary on Genesis 18:9-15
(Read Genesis 18:9-15)
Where is Sarah thy wife? was asked. Note the answer, In the tent. Just at hand, in her proper place, occupied in her household concerns. There is nothing got by gadding. Those are most likely to receive comfort from God and his promises, who are in their proper place, and in the way of their duty, 17; but He who searches the heart, saw that the one sprung from unbelief, and the other from faith. She denied that she had laughed. One sin commonly brings in another, and it is not likely we shall strictly keep to truth, when we question the Divine truth. But whom the Lord loves he will rebuke, convict, silence, and bring to repentance, and if they sin before him.
Commentary on Genesis 18:16-22
(Read Genesis 18:16-22)
The two who are supposed to have been created angels went toward Sodom. The one who is called Jehovah throughout the chapter, continued with Abraham, and would not hide from him the thing he intended to do. Though God long forbears with sinners, from which they fancy that the Lord does not see, and does not regard; yet when the day of his wrath comes, he will look toward them. The Lord will give Abraham an opportunity to intercede with him, and shows him the reason of his conduct. Consider, as a very bright part of Abraham's character and example, that he not only prayed with his family, but he was very careful to teach and rule them well. Those who expect family blessings must make conscience of family duty. Abraham did not fill their heads with matters of doubtful dispute; but he taught them to be serious and devout in the worship of God, and to be honest in their dealings with all men. Of how few may such a character be given in our days! How little care is taken by masters of families to ground those under them in the principles of religion! Do we watch from sabbath to sabbath whether they go forward or backward?