Genesis 18:2-5

He looked up and noticed three men standing nearby. When he saw them, he ran to meet them and welcomed them, bowing low to the ground. “My lord,” he said, “if it pleases you, stop here for a while. Rest in the shade of this tree while water is brought to wash your feet. And since you’ve honored your servant with this visit, let me prepare some food to refresh you before you continue on your journey.” “All right,” they said. “Do as you have said.”