Commentaries:
These angels are the other two who were with the Lord when He was entertained by Abraham. The other two "men" are identified conclusively as angels. It is interesting that the story begins in Genesis 18:1 as though these three spirit beings just suddenly appeared, as if one moment Abraham could not see them, and the next moment three people were suddenly there. Apparently, Abraham was of such experience that he recognized immediately who they were. He certainly was not nonplussed because he immediately bowed down and worshipped one of them, recognizing that One as the Lord.
John W. Ritenbaugh
Image and Likeness of God (Part Three)
Other Forerunner Commentary entries containing Genesis 19:1:
Luke 17:20-37