Genesis 18:1-5

1And 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. 2He lifted up his eyes and looked, and behold, three men were standing in front of him. When he saw them, he ran from the tent door to meet them and bowed himself to the earth 3and said, “O Lord, if I have found favor in your sight, do not pass by your servant. 4Let a little water be brought, and wash your feet, and rest yourselves under the tree, 5while I bring a morsel of bread, that you may refresh yourselves, and after that you may pass on—since you have come to your servant.” So they said, “Do as you have said.”