Peter said to Jesus, “Lord, it is good for us to be here. If You wish, I will put up three shelters—one for You, one for Moses, and one for Elijah.”
4. Lord, it is good for us to be here. Luke tells us that Peter uttered these words while Moses and Elijah were departing; and hence we infer that he was afraid lest, at their departure, that pleasant and delightful exhibition should vanish away.
We have here the story of Christ's transfiguration; he had said that the Son of man should shortly come in his kingdom, with which promise all the three evangelists industriously connect this story; as if Christ's transfiguration were intended for a specimen and an earnest of the kingdom of Christ, and of that light and love of his, which therein appears to his select and sanctified ones.
Commenting on Matthew 17:1-13
Then answered Peter and said unto Jesus,.... Which was, as Luke informs us, after he, and James, and John, awoke out of sleep; for it being night when Christ was transfigured, and they weary, were overpressed, and fell asleep on the mount, as they afterwards did in the garden with him: but when they were awaked, either by the talk of the men with Christ...