Oecumenius, on Heb 13:2

“And hospitality do not forget; for by this some, being not aware of it, have entertained angels.”

“"Do not forget to show hospitality." For as they had been plundered of their possessions, they might perhaps have been more sparing. But by saying, let it remain, and do not forget, it shows that they had long possessed these virtues, but now, due to the continuous hardships, they were in danger of becoming indifferent to these virtues; therefore, Paul again encourages them towards these things. "in this way, some have been unaware while they entertained angels." Thus, Paul says, great is hospitality, so that it became a cause for those around Abraham and Lot to receive the angels. (Gen. 18) And the fact that they were unaware, instead of not knowing, that the guests were angels, and yet they received them so hospitably; therefore this great reward for them; for if they had known, they would have done nothing great.”

Imported from an open dataset — not yet checked against the printed edition.