JMNT(i)
28 So it came to be (happened; was birthed) – about eight days after these words – that, taking along Peter, John and Jacob (James), He walked up into the hill country (or: climbed into the mountain) to think and commune with a view to goodness, ease and well-being (or: to pray).
29 Then it happened! During the [occasion] for Him to be continuing in speaking and thinking goodness (or: praying), the form (external appearance) of His face became different, and His clothing (apparel) continued flashing forth bright whiteness and brilliant luster.
30 Also – look, and consider this! – two adult men (males), who were and continued being Moses and Elijah, continued speaking with Him.
31 These men were being seen (or: were being caused to be visible and were being observed) in the midst of the manifestation which called forth praise and in union with [the] glory. They kept on talking [about] His exodus (His way out; His path from out of the midst; or: His departure) which was progressively about to be filling up to completion within Jerusalem.
32 Now Peter and those with him had been men having been weighed down and burdened by sleep (may = were half asleep; or: = were sound asleep), yet, upon being fully awake and alert, they see His glory (praise-inducing manifestation) and the two adult men standing together with Him.