Hebrews chapter 13 verse 2

Do not forget hospitality for through it some unknowingly entertained angels.

Reference A: Romans chapter 12 verse 13
Share with the holy ones according to their needs. Follow the course of hospitality.
Reference A: 1 Timothy chapter 3 verse 2

The overseer should therefore be irreprehensible, a husband of one wife, moderate in habits, sound in mind, orderly, hospitable, qualified to teach,

Reference B: Genesis chapter 18 verse 3
Then he said: Jehovah, if I have found favor in your eyes, please do not pass by, your servant. 

Reference B: Genesis chapter 19 verse 1
The two angels arrived at Sodom by evening, and Lot was sitting in the gate of Sodom. When Lot saw them, he got up to meet them and bowed down with his face to the earth. Matthew chapter 25 verse 35

For I became hungry and you gave me something to eat; I was thirsty and you gave me something to drink. I was a stranger and you received me hospitably;