Let's just review those verses and look at what it says. First of all, the Lord appeared and Abraham saw Him with his eyes and what did He look like? He looked like a man. But it was the Lord because Abraham bowed down and worshipped Him and He didn't reject the worship.
In verse 4, Abraham said, "Let a little water be brought, and wash your feet." God has feet. "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 them. That's pretty clear.
I think he recognized immediately who it was.
This meal might have been the very first fast food meal in the history of the world, but fast food by our standards it was not. It is also unusual that Abraham did not even eat with them.
One of the things of course that we can learn from this and add to our fund of knowledge of the way food and eating is used in the Bible is that it is the focal point of Abraham and Sarah—the father and the mother of our faith—as their means of hospitality. It is not unimportant.
