Genesis 19:1
The two angels came to Sodom at evening. Lot sat in the gate of Sodom. Lot saw them, and rose up to meet them. He bowed himself with his face to the earth,
Genesis 18:22
The men turned from there, and went toward Sodom, but Abraham stood yet before the LORD.
Genesis 18:1-5
The LORD appeared to him by the oaks of Mamre, as he sat in the tent door in the heat of the day.
Job 31:32
(the foreigner has not lodged in the street, but I have opened my doors to the traveler);
Hebrews 13:2
Do not forget to show hospitality to strangers, for in doing so, some have entertained angels without knowing it.