Now one day when he was praying alone in the presence of his disciples he put this question to them, ‘Who do the crowds say I am?’ And they answered, ‘John the Baptist; others Elijah; and others say one of the ancient prophets come back to life.’ ‘But you’ he said ‘who do you say I am?’ It was Peter who spoke up. ‘The Christ of God.’ he said. But he gave them strict orders not to tell anyone anything about this.

‘The Son of Man’ he said, ‘is destined to suffer grievously, to be rejected by the elders and chief priests and scribes and to be put to death, and to be raised up on the third day.’ Then to all he said, ‘If anyone wants to be a follower of mine, let him renounce himself and take up his cross every day and follow me. For anyone who wants to save his life will lose it; but anyone who loses his life for my sake, that man will save it. What gain, then, is it for a man to have won the whole world and to have lost or ruined his very self? For if anyone is ashamed of me and of my words, of him the Son of Man will be ashamed when he comes in his own glory and in the glory of the Father and the holy angels. I tell you truly, there are some standing here who will not taste death before they see the kingdom of God.’

Now about eight days after this had been said, he took with him Peter and John and James and went up the mountain to pray. As he prayed, the aspect of his face was changed and his clothing became brilliant as lightning. Suddenly there were two men there talking to him; they were Moses and Elijah appearing in glory, and they were speaking of his passing which he was to accomplish in Jerusalem. Peter and his companions were heavy with sleep, but they kept awake and saw his glory and the two men standing with him. As these were leaving him. Peter said to Jesus, ‘Master, it is wonderful for us to be here; so let us make three tents, one for you, one for Moses and one for Elijah.’ - He did not know what he was saying. As he spoke, a cloud came and covered them with shadow; and when they went into the cloud the disciples were afraid. And a voice came from the cloud saying, ‘This is my Son, the Chosen One. Listen to him.’

And after the voice had spoken, Jesus was found alone. The disciples kept silence and, at that time, told no one what they had seen.

Luke 9:18-36