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Hebrews 13:2 (WEB)
Don’t forget to show hospitality to strangers, for in doing so, some have entertained angels without knowing it.

Fathers and councils · 5

John Chrysostom, Homilies on Hebrews Homily 11
“If he had been over-curious about those who fled to him for refuge, he would not have “entertained angels.” ( c. xiii. 2.)” — the author cites it
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John Chrysostom, Homilies on Hebrews Homily 33
“C. xiii. 1, 2.” — the author cites it
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Tertullian, On Prayer Chapter 26
“You will not dismiss a brother who has entered your house without prayer.—“Have you seen,” says Scripture, “a brother? you have seen your Lord;”—especially “a stranger,” lest perhaps he be “an angel.”” — editor's note: I have ventured to turn the first part of the sentence into a question. What “scripture” this may be, no one knows. [It seems to me a clear reference to Matt.…
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Augustine of Hippo, Sermons on New Testament Lessons Sermon 53
“Sometimes, they who were not aware of it, by entertaining those whom they knew not, have entertained angels.” — editor's note: Heb. xiii. 2.
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Augustine of Hippo, The City of God XVI.29Book XVI
“But that they were angels the Scripture testifies, not only in this book of Genesis, in which these transactions are related, but also in the Epistle to the Hebrews, where in praising hospitality it is said, “For thereby some have entertained angels unawares.”” — editor's note: Heb. xiii. 2.
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