Charles Spurgeon Commentary Hebrews 13:2

"Forget not to show love unto strangers: for thereby some have entertained angels unawares." — Hebrews 13:2 (ASV)

Be not forgetful to entertain strangers: for thereby some have entertained angels unawares.

Abraham did so, and Lot did so; they thought they were entertaining ordinary strangers, and they washed their feet, and prepared their food, but it turned out that they had entertained angels.

Some people will never entertain angels unawares, for they never entertain anybody. May we be given to hospitality, for that should be part of the character of saints.