Be not forgetful to entertain strangers, etc. This office of humanity has also nearly ceased to be properly observed among men; for the ancient hospitality, celebrated in histories, is unknown to us, and Inns now supply the place of accommodations for strangers. But he speaks not so much of the practice of hospitality as observed then by the rich; but he rather commends the miserable and the needy to be entertained, as at that time many were fugitives who left their homes for the name of Christ. And that he might commend this duty the more, he adds, that angels had sometimes been entertained by those who thought that they received only men. I doubt not but that this is to be understood of Abraham and Lot; for having been in the habit of showing hospitality, they without knowing and thinking of any such thing, entertained angels; thus their houses were in no common way honored. And doubtless God proved that hospitality was especially acceptable to him, when he rendered such a reward to Abraham and to Lot. Were any one to object and say, that this rarely happened; to this the obvious answer is, -- That not mere angels are received, but Christ himself, when we receive the poor in his name. In the words in Greek there is a beautiful alliteration which cannot be set forth in Latin.

Be not forgetful to entertain strangers - On the duty of hospitality, see a full explanation in the notes on Romans 12:13.
For thereby some have entertained angels unawares - Without knowing that they were angels. As Abraham (Genesis 18:2 ff), and Lot did; Genesis. 19. The motive here urged for doing it is, that by entertaining the stranger we may perhaps be honored with the presence of those whose society will be to us an honor and a blessing. It is not well for us to miss the opportunity of the presence, the conversation, and the prayers of the good. The influence of such guests in a family is worth more than it costs to entertain them. If there is danger that we may sometimes receive those of an opposite character. yet it is not wise on account of such possible danger, to lose the opportunity of entertaining those whose presence would be a blessing. Many a parent owes the conversion of a child to the influence of a pious stranger in his family; and the hope that this may occur, or that our own souls may be blessed, should make us ready, at all proper times, to welcome the feet of the stranger to our doors. Many a man, if, he had been accosted as Abraham was at the door of his tent by strangers, would have turned them rudely away; many a one in the situation of Lot would have sent the unknown guests rudely from his door; but who can estimate what would have been the results of such a course on the destiny of those good people and their families? For a great number of instances in which the pagan were supposed to have entertained the gods, though unknown to them, see Wetstein in loc.

To entertain stranger's - In those early times, when there were scarcely any public inns or houses of entertainment, it was an office of charity and mercy to receive, lodge, and entertain travelers; and this is what the apostle particularly recommends.
Entertained angels - Abraham and Lot are the persons particularly referred to. Their history, the angels whom they entertained, not knowing them to be such, and the good they derived from exercising their hospitality on these occasions, are well known; and have been particularly referred to in the notes on Genesis 18:3 (note); Genesis 19:2 (note).

Be not forgetful to entertain strangers,.... By whom are meant, not unconverted men, who are strangers to God and Christ, and the covenants of promise; nor saints, who are as pilgrims and strangers in this world; but such as are of another country, and are unknown; and even though wicked men, they are not excluded; though such as are obliged to quit their own country for righteousness sake are chiefly designed; all strangers in distress are meant, and hospitality is to be exercised towards them; which lies negatively in doing nothing to distress them, and positively in providing food, raiment, lodging, &c. for them, and in comforting, counselling, and directing them in all matters in which they may stand in need thereof: and that this is a duty, appears from the light of nature, and practices of the Heathens, Acts 28:2, from the express law of God, Deuteronomy 10:19 and many others made in favour of strangers, binding on the Jews; from the sundry exhortations to it in the New Testament, Romans 12:13 and from the exhortation here not to forget it; and from the great regard which Christ will show to such as mind it, and his disregard to others at the last day: the persons who are to exercise it are not only the ministers of the Gospel, who should be given to hospitality; but all the saints, even the meaner sort are not exempted, but should use it according to their ability; though it is chiefly binding on those that are rich. And this should not be forgot, but pursued and followed after; it should be frequently performed; men should be given, and used to it; it should be done without grudging, and in a friendly and loving manner:
for thereby some have entertained angels unawares; as Abraham, Genesis 18:1, he knew them not to be angels at first; they appeared as men, and he treated them as such; but they were angels, yea, one of them was Jehovah himself; and hereby he received many favours, Genesis 18:10, and Lot, Genesis 19:1 who knew not that they were angels he took into his house; but they were, and he was delivered by them from the burning of Sodom; yea, some have unawares, this way, entertained Christ himself, Luke 24:15 and indeed, entertaining of his members is entertaining him, Matthew 25:38. It is an observation of a Jewish writer (r) upon the first of these instances;
"from hence we learn (says he) how great is the strength (or virtue) of the reception of travellers (or hospitality), as the Rabbins of blessed memory say, greater is , "hospitality", than the reception of the face of the Shechinah.''
And this is said to be one of the six things which a man enjoys the fruit of in this world, and for which there remains a reward in the world to come (s).
(r) R. Abraham Seba in Tzeror Hammor, fol. 18, 4. (s) T. Bab. Sabbat, fol. 127. 1.

Some - Abraham and Lot. Have entertained angels unawares - So may an unknown guest, even now, be of more worth than he appears, and may have angels attending him, though unseen. Genesis 18:2; Genesis 19:1.