Before asking what Moses and Elijah were doing with Jesus at the Transfiguration, I want to ask a prior question: What did Jewish scripture and tradition think had happened to Moses and Elijah before they ever appeared on that mountain?
Elijah presents the easier case. Second Kings does not record his death. Elijah and Elisha are walking together when a fiery chariot separates them and Elijah ascends “in a whirlwind into heaven” (2 Kings 2:11). Centuries later, Sirach still speaks of Elijah as one who had been taken up and who was expected to appear again at the appointed time.
Moses is stranger. Deuteronomy is explicit that Moses died in Moab. Yet his burial was unlike anyone else’s: he was buried where no human witness apparently observed it, and “no one knows his burial place to this day” (Deut. 34:5–6). Then Jude adds a detail found nowhere in the Old Testament: Michael the archangel disputed with the devil “about the body of Moses” (Jude 9).
So what became of Moses?
That question was already being asked by Jews around the time of Jesus. Josephus describes Moses disappearing when a cloud suddenly came over him, although Josephus also acknowledges that the Torah says Moses died. Philo describes Moses leaving mortal life for immortality and beginning a journey from earth to heaven. Other Jewish traditions speak of divine burial, angelic involvement, and eventually even claim that “Moses did not die.”
I would like to look first at those traditions—carefully distinguishing the Hebrew Bible, Second Temple Jewish sources, later rabbinic traditions, and still later Jewish legends—and only then turn to Matthew 17, Mark 9, and Luke 9.
My particular question is this: Is there enough Jewish background to make it reasonable to understand Moses and Elijah as existing in some transformed heavenly condition when they appeared with Jesus?
And there is a second puzzle. Peter apparently knows that the two strangers are Moses and Elijah. But Peter had never met either man, and there were obviously no authenticated portraits from which to recognize them. The Gospels tell us that the two men were talking with Jesus before Peter named them. Did their conversation identify them? Did Jesus tell the disciples who they were? Or does the narrative simply leave the means of recognition unexplained?
I don’t know the answer to either question yet. That’s what I would like to explore.