The Lord appeared, and Abraham saw Him coming. What did He look like? He looked like a man. But it was the Lord because Abraham bowed down and worshipped Him, and the Lord did not reject his worship.
In verse 4, Abraham says, "Please let a little water be brought, and wash your feet." God has feet. Then he says in verse 5, "And I will bring a morsel of bread." We find that God took the bread and the meat, and the three of them ate. He spoke, so He had a voice, and He conversed with Abraham and Sarah.
God shows other qualities here that are interesting to think about. How long did it take Abraham to run, order a calf killed, have someone slaughter it, bleed it, skin it, butcher it, roast the meat, and then serve it to Him? It must have taken a few hours at least. In the meantime, God is sitting under a tree, and He is at the same time running the whole universe. He must have been handling all of the other things that go on in the universe from that chair or pillow He was sitting on.
Do we ever feel rushed because we have too many things to do? Yet, here is the busiest Being in all of creation, and He had enough time to sit down, wash His feet, and wait patiently while they made Him a meal. Do we ever become impatient? In this example, we see patience exemplified.
So, we see God exhibits qualities other than form and shape, even though they may not be mentioned directly.
John W. Ritenbaugh
Image and Likeness of God (Part Two)
The Bible places a high value on hospitality and eating, and sometimes banqueting is the focal point of that hospitality. In Genesis 18:1-8, Abraham is the first person shown opening the door of his home in hospitality to others, in this case to the Lord Himself!
The meal, hastily prepared by their time standards, is unusual in that Abraham does not even eat with them! We often feel that we cannot spare the time to do such things, but here is God, the Creator, who finds time in His infinitely busier schedule to sit and wait while Abraham and Sarah prepare a banquet for Him and His companions! The point, however, is that food and eating is the focal point of Abraham's hospitality. Important events frequently occur on such occasions.
John W. Ritenbaugh
Eating: How Good It Is! (Part One)