But Peter and they that were with him were heavy with sleep: and when they were awake, they saw his glory, and the two men that stood with him.

People's New Testament

9:28-36 About an eight days after. For the Transfiguration, see notes on Mt 17:1-9 Mr 9:1-8. Luke adds the facts (1) that the Lord went upon the mountain to pray (Lu 9:28); (2) that as he prayed, he was transfigured (Lu 9:29); (3) that the appearance of his countenance was altered (Lu 9:29); (4) that the theme of conversation with Moses and Elijah was the Lord's decease (Lu 9:30,31); (5) that the apostles were awake when they saw the vision (Lu 9:32); (6) that they told no man in those days, even as Jesus directed (Lu 9:36 Mt 17:9).

Wesley's Notes

9:32 They saw his glory - The very same expression in which it is described by St. John, John 1:14; and by St. Peter, 2Pet 1:16.

Jamieson-Fausset-Brown Bible Commentary

32. and when they were awake-so, certainly, the most commentators: but if we translate literally, it should be "but having kept awake" [Meyer, Alford]. Perhaps "having roused themselves up" [Olshausen] may come near enough to the literal sense; but from the word used we can gather no more than that they shook off their drowsiness. It was night, and the Lord seems to have spent the whole night on the mountain (Lu 9:37).

saw his glory, &c.-The emphasis lies on "saw," qualifying them to become "eye-witnesses of His majesty" (2Pe 1:16).

Matthew Henry's Concise Commentary

9:28-36 Christ's transfiguration was a specimen of that glory in which he will come to judge the world; and was an encouragement to his disciples to suffer for him. Prayer is a transfiguring, transforming duty, which makes the face to shine. Our Lord Jesus, even in his transfiguration, was willing to speak concerning his death and sufferings. In our greatest glories on earth, let us remember that in this world we have no continuing city. What need we have to pray to God for quickening grace, to make us lively! Yet that the disciples might be witnesses of this sign from heaven, after awhile they became awake, so that they were able to give a full account of what passed. But those know not what they say, that talk of making tabernacles on earth for glorified saints in heaven.