Mark 9:2-6

And after six days Jesus taketh with him Peter, and James, and John, and leadeth them up into an high mountain apart by themselves: and he was transfigured before them.

And his raiment became shining, exceeding white as snow; so as no fuller on earth can white them.

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.