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.
While he was yet speaking, behold, a bright cloud overshadowed them: and they feared as they entered into the cloud.
And behold, a voice out of the cloud, saying, "This is my beloved Son, in whom I am well pleased; hear ye him."
And when the disciples heard it, they fell on their face, and were sore afraid. And Jesus came and touched them and said, "Arise, and be not afraid."
And suddenly looking round about, they saw no one any more, save Jesus only with themselves.
And as they were coming down from the mountain, he charged them that they should tell no man what things they had seen, save when the Son of man should have risen again from the dead.
And they kept the saying, questioning among themselves what the rising again from the dead should mean. And they asked him, saying, "How is it that the scribes say that Elijah must first come?"
And he said unto them, "Elijah indeed cometh first, and restoreth all things: and how is it written of the Son of man, that he should suffer many things and be set at nought? But I say unto you, that Elijah is come, and they have also done unto him whatsoever they would even as it is written of them."
Then understood the disciples that he spake unto them of John the Baptist.