American Standard Version
Forget not to show love unto strangers: for thereby some have entertained angels unawares.

Berean Study Bible
Do not neglect to show hospitality to strangers, for by so doing some people have entertained angels without knowing it.

Douay-Rheims Bible
And hospitality do not forget; for by this some, being not aware of it, have entertained angels.

English Revised Version
Forget not to shew love unto strangers: for thereby some have entertained angels unawares.

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

World English Bible
Don't forget to show hospitality to strangers, for in doing so, some have entertained angels without knowing it.

Young's Literal Translation
of the hospitality be not forgetful, for through this unawares certain did entertain messengers;

Hebrews 13:2 Additional Translations ...