Mark 9:4-8

And there appeared unto them Elias with Moses: and they were talking with Jesus.

And Peter answered and said to 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 Elias.

For he wist not what to say; for they were sore afraid.

And there was a cloud that overshadowed them: and a voice came out of the cloud, saying, This is my beloved Son: hear him.

And suddenly, when they had looked round about, they saw no man any more, save Jesus only with themselves.