Luke 9:32-36

32Now Peter and those with him were quite sleepy, but as they became fully awake, they saw his glory and the two men standing with him.

33Then as the men were starting to leave, Peter said to Jesus, “Master, it is good for us to be here. Let us make three shelters, one for you and one for Moses and one for Elijah” – not knowing what he was saying.

34As he was saying this, a cloud came and overshadowed them, and they were afraid as they entered the cloud.

35Then a voice came from the cloud, saying, “This is my Son, my Chosen One. Listen to him!”

36After the voice had spoken, Jesus was found alone. So they kept silent and told no one at that time anything of what they had seen.