Genesis 18:2-5

He looked up and saw three men standing near him. When Abraham saw them, he ran from his tent to meet them. He bowed facedown on the ground before them and said, “Sir, if you think well of me, please stay awhile with me, your servant. I will bring some water so all of you can wash your feet. You may rest under the tree, and I will get some bread for you so you can regain your strength. Then you may continue your journey.” The three men said, “That is fine. Do as you said.”