Genesis 19:1
The two angels came to Sodom in the evening, and Lot was sitting in the gate of Sodom. When Lot saw them, he rose to meet them and bowed himself with his face to the earth
Genesis 18:22
So the men turned from there and went toward Sodom, but Abraham still stood before the LORD.
Genesis 18:1-5
And the LORD appeared to him by the oaks of Mamre, as he sat at the door of his tent in the heat of the day.
Job 31:32
(the sojourner has not lodged in the street; I have opened my doors to the traveler),
Hebrews 13:2
Do not neglect to show hospitality to strangers, for thereby some have entertained angels unawares.