Jesus is the focus of the event, something made abundantly clear near the end of the passage by the phrase, "After the voice had spoken, Jesus was found alone" (Lk 9:36). This scene almost foreshadows what will take place after the Resurrection when Jesus breaks bread in Emmaus with the two disciples. After celebrating the Eucharist with them, Jesus "vanished out of their sight" (Lk 24:31b). Here too, Jesus is the focus of the event; though it is his Eucharistic presence which takes precedence in the scene. Jesus himself puts this spotlight on this, helping us us to understand by vanishing out of their sight.
Luke continues to show us that the promise of a new and greater exodus is being fulfilled in Jesus, the new Moses. This is demonstrated by the many parallels between Moses and Jesus, as well as an event in Exodus 24, and in Jesus’ Transfiguration. For example:
1. Moses himself is present in both events (Ex 24; Lk 9).
2. Both events take place on a mountain (Ex 24:13, 15).
3. Moses and Jesus both take three companions (Ex 24:1).
4. Both of their faces shine with God’s glory (Ex 34:29).
5. In both events there is the glory cloud of God’s presence, the shekinah (Ex 24:15-16).
6. God speaks through a heavenly voice (Ex 24:12).
Have you ever wondered what exactly Jesus, Moses and Elijah were talking about? Luke tells us that they "spoke of his exodus that he was going to accomplish in Jerusalem" (9:30).
Also fascinating is the fact that the Book of Revelation speaks of Jerusalem as the new Egypt (cf. 11:7-8). In this same context, Revelation also speaks of two witnesses. "They have the power to shut the sky, that no rain may fall during the days of their prophesying" (Rv 11:6a). This is exactly what Elijah did in 1 Kings 17:1. They also "have power over the waters to turn them into blood, and to afflict the earth with every plague, as often as they desire" (Rv 11:6b). This is exactly what Moses did in Exodus 7:17.
The next thing Luke shows us which confirms Jesus as the new Moses is a connection with an Old Testament feast inaugurated under Moses. Peter requests that he be able to make three tents, which can also be translated "booths" or "tabernacles." In Leviticus 23:33-43 we are told of the institution of the Feast of Booths which celebrates God’s bringing Israel out of the land of Egypt and also commemorates the giving of the law.