“Do not neglect to show hospitality to strangers, for thereby some have entertained angels unawares” (Hebrews 13:2).
The act of extending hospitality to strangers offers another potential benefit that goes beyond simple courtesy: “…by doing this some have been hosts to angels without knowing it” (CEB). One Biblical example involves Abraham, the Old Testament patriarch. Abraham once entertained three men (who turned out to be God, accompanied by two angelic beings) when they unexpectedly arrived at his place of residence (see Genesis 18:1-33).
Later on, those same two angelic beings appeared to Abraham’s nephew Lot. Since Lot resided in the infamous town of Sodom, he pressed his visitors to remain within his home rather than face the dangerous prospect of an overnight stay in the town square. That approach was commendable but not successful, and Lot soon learned that his angelic guests were considerably more than they appeared.
One author provides some additional insight concerning this passage and its reference to angels…
“Though angels are normally invisible, they can nevertheless appear as men (Matthew 1:20; Luke 1:26; John 20:12). Their resemblance to men can be so realistic, in fact, that they are actually taken to be human beings (Hebrews 13:2). Recall from the Old Testament that Abraham welcomed three ‘men’ in the plains of Mamre (Genesis 18:1-8). These ‘men’ walked, talked, sat down, and ate -just like normal men- but they were not men; they were angels (see Genesis 18:22; 19:1).
Now, we have no scriptural evidence that angels need food for sustenance. But apparently they can appear as men and eat like men during the course of fulfilling their assigned task in the realm of humanity. Thus, it is altogether possible that a particular person who helped you during a time of need in your past was actually an angel who appeared as a human. There is no reason to suggest that such appearances cannot occur today just as they did in biblical times.” (1)
Nevertheless, we should guard against the tendency to view every stranger as a potential angel in disguise. One source encourages us to take a reasoned view of this passage that allows for a natural interpretation: “He is not necessarily encouraging his readers to expect that those whom they entertain will turn out to be supernatural beings travelling incognito; he is assuring them that some of their visitors will prove to be true messengers of God to them, bringing a greater blessing than they receive.” (2)
(1) Rhodes, Ron, Angels Among Us Copyright © 1994 by Harvest House Publishers [pp. 79-80]
(2) The New International Commentary On The New Testament – The Epistle To The Hebrews, F. F. Bruce, General Editor © Copyright 1964, Wm. B. Eerdmans Publishing Co. Grand Rapids, Michigan [pg. 391]