And the Lord went his way, as soon as he had left communing with Abraham,.... It is great and wonderful condescension for God to commune with a creature; it is an act of sovereignty how long he will continue to do so; communion with him always is not to be expected in this life; he communes for a while, and then leaves off and goes his way, see Jeremiah 14:8; the Son of God in an human form, as soon as he had done talking with Abraham, perhaps disappeared to him, and went his way to Sodom, for there we find him in the next chapter:

and Abraham returned unto his place; to his tent in the plains of Mamre, waiting to observe or hear what would be the issue and event of things respecting Sodom and Gomorrah.

And the LORD went his way, as soon as he had left communing with Abraham: and Abraham returned unto his place.

18:33 Abraham returned into his place - To wait what the event would be; and it proved that his prayer was heard, and yet Sodom not spared, because there were not ten righteous in it.

33. the Lord . left communing . and Abraham returned unto his place-Why did Abraham cease to carry his intercessions farther? Either because he fondly thought that he was now sure of the cities being preserved (Lu 13:9), or because the Lord restrained his mind from further intercession (Jer 7:16; 11:14). But there were not ten "righteous persons." There was only one, and he might without injustice have perished in the general overthrow (Ec 9:2). But a difference is sometimes made, and on this occasion the grace of God was manifested in a signal manner for the sake of Abraham. What a blessing to be connected with a saint of God!

18:23-33 Here is the first solemn prayer upon record in the Bible; and it is a prayer for the sparing of Sodom. Abraham prayed earnestly that Sodom might be spared, if but a few righteous persons should be found in it. Come and learn from Abraham what compassion we should feel for sinners, and how earnestly we should pray for them. We see here that the effectual, fervent prayer of a righteous man avails much. Abraham, indeed, failed in his request for the whole place, but Lot was miraculously delivered. Be encouraged then to expect, by earnest prayer, the blessing of God upon your families, your friends, your neighbourhood. To this end you must not only pray, but you must live like Abraham. He knew the Judge of all the earth would do right. He does not plead that the wicked may be spared for their own sake, or because it would be severe to destroy them, but for the sake of the righteous who might be found among them. And righteousness only can be made a plea before God. How then did Christ make intercession for transgressors? Not by blaming the Divine law, nor by alleging aught in extenuation or excuse of human guilt; but by pleading HIS OWN obedience unto death.