Luke 9:30-33

And behold, there talked with him two men, who were Moses and Elijah; who appeared in glory, and spake of his decease which he was about to accomplish at Jerusalem. Now Peter and they that were with him were heavy with sleep: but when they were fully awake, they saw his glory, and the two men that stood with him. And it came to pass, as they were parting from him, Peter said unto Jesus, Master, it is good for us to be here: and let us make three tabernacles; one for thee, and one for Moses, and one for Elijah: not knowing what he said.