Genesis 18:2-5 New International Version (NIV)
2 Abraham looked up and saw three men standing nearby. When he saw them, he hurried from the entrance of his tent to meet them and bowed low to the ground.
3 He said, “If I have found favor in your eyes, my lord, do not pass your servant by. 4 Let a little water be brought, and then you may all wash your feet and rest under this tree. 5 Let me get you something to eat, so you can be refreshed and then go on your way—now that you have come to your servant.”
“Very well,” they answered, “do as you say.”
A person’s reputation was connected to the hospitality that was demonstrated. It was right to share one’s home and food with a stranger. Strangers were to be treated as highly honored guests. Even today, providing food and shelter to meet another person’s needs is a way to show obedience to God. In Hebrews 13:2 it suggests that we might actually entertain angels, just as Abraham did. Keep this in mind when you have an opportunity to meet a stranger’s needs.