The Transfiguration of Jesus is recorded in the Synoptic Gospels (Matthew 17:1-9, Mark 9:2-8, Luke 9:28-36), which, as you mentioned in your question, involved the appearance of Elijah and Moses with Jesus. As for where it occured, Christian tradition says it took place on Mount Tabor. More recent scholars suggest that the "high mountain" mentioned in the passage could have been Mount Hermon or Mount Nebo.
Elijah and Moses
Moses and Elijah
Jesus was on the hill with a few disciples and Moses and Elijah were there as well.
The question is not clear, who appeared when? It was the Angels at the tomb and Moses and Elijah on the mountain.
A:Jesus took Peter, James and John up into a high mountain, where his appearance changed, and they saw him talking to two strangers. Somehow, the disciples knew without question that the strangers talking to Jesus were Moses and Elijah. Why the disciples even thought the men were Moses and Elijah is not stated.
AnswerJesus took Peter, James and John up into a high mountain, where his appearance changed, and they saw him talking to Moses and Elijah. It is reported that over 90 per cent of scholars say that the historical events ascribed to Moses never occurred, and it is therefore most unlikely that Moses ever existed. Similarly, it is quite improbable that Elijah ever existed. Yet, somehow, the disciples knew without question that the strangers talking to Jesus were Moses and Elijah.
Jesus and Moses were not contemporaries, although Moses did appear with Elijah to Jesus on the Mount of Transfiguration. Jesus did give respect and credibility to Moses' writings and referred to the fact that Moses spoke about Him in His writings.
Moses and Elijah ...Matt17:3
He moses could be dead , but we see in the new testament Moses and Elijah with Jesus, so as Elijah was taken to the heavens so Moses to could have been taken up as his grave is not found yet.
The Transfiguration.It is called the Tranfugeration.
The transforming of the body is called transfiguration. The only time that this has happened in humans was during the time of Jesus where Moses and Elijah appeared.
It sounds as if you are asking about the transfiguration of Jesus. Moses and Elijah both appeared to Jesus on Mt. Tabor during the transfiguration in the presence of Peter, James and John.