In Hebrews 13:2 it says we are to be hospitable because in doing so some have entertained angels unawares. I'm trying to understand if this means there is a possibility we could show kindness to an actual angel (appearing as a human), or if by "entertaining" it is talking about them being entertained (i.e. rejoicing) by what we do to real humans during our lifetime.
"Do not forget to entertain strangers, for by so doing some have unwittingly entertained angels" (Hebrews 13:2).
The command to entertain strangers is given support by noting that some in the past have entertained angels without being aware of who their guests were. For example, Abraham served a meal for angel (Genesis 18). Lot took two angels into his home (Genesis 19). It isn't that everyone has entertained angels or that this is a common occurrence. The point is that no one ever knows when they might be entertaining an angel, so being hospitable should not be neglected.