Abraham drew near. — As Jewish commentators remark, this word is especially used of prayer, and Abraham’s intercession is unspeakably noble. Nor must we suppose that he thought only of Lot. Doubtless he remembered the day when he had restored the persons and spoil to the king of Sodom. He had then seen their human affection; the joy of parent meeting with child, and friend with friend; and he hoped that there were good people among them, and that so marvellous a deliverance would work in many of them a true repentance. Neither must we suppose that Abraham adroitly began with a large number, with the intention of lessening it. It was the readiness with which each prayer was heard which made him in his earnestness continue his entreaties. It thus illustrates the principle that the faith of the believer grows strong as he feels that his prayers are accepted, and he ventures finally to offer petitions, nothing wavering, which at an earlier stage would have seemed to him to ask more than he might venture to hope from the Divine goodness.
Destroy. — Heb., sweep away; and so in Genesis 18:24. The difference is not without force; for the verb “to sweep away” gives the idea of a more indiscriminate ruin than the usual word destroy, which Abraham substitutes for it in Genesis 18:28; Genesis 18:31-32.