Questions after the transfiguration- Read (Matthew 17:9-13)(Mark 9:9-13)
As they came down from the mountain where Jesus was transfigured, Jesus told Peter, James & John "Tell the vision to no one until the Son of Man is risen from the dead." So they kept their experience to themselves, questioning what the rising from the dead meant. Later they asked him, "Why do the scribes say that Elijah must come first?" Jesus answered, "Indeed, Elijah is coming first and will restore all things. But I say to you that Elijah has come already, and they did not know him but did to him whatever they wished. Likewise the Son of Man is also about to suffer at their hands." The disciples understood that he spoke to them of John the Baptist.
The disciples knew that their questions and doubts would find answers with their Teacher and when alone with Jesus they asked him the same. Here they asked him about the prophecy of Malachi which spoke of the coming of Elijah before the coming of the great and dreadful day of the Lord (ref. Malachi 4:5). Jesus answered and told them that it was true and it had happened, but the scribes had not realized it, indirectly speaking of John the Baptist and how he was dealt with. Jesus ended by saying that he himself was to suffer likewise.