7 A cloud came, overshadowing them, and a voice came out of the cloud, "This is my beloved Son. Listen to him."
*Minor differences ignored. Grouped by changes, with first version listed as example.
And there was a cloud that overshadowed them,.... Jesus, Moses, and Elias, and also the disciples; who, according to Luke, entered into it, and so were covered by it.
And a voice came out the cloud, saying, this is my beloved Son, hear him. This was the voice of God the Father, bearing a testimony to the sonship of Christ; and was directed, not to Moses and Elias, but to the disciples, enjoining them to hear and obey him, who was the end of the law and prophets; was the great prophet Moses had spoken of, and was to be hearkened to, and whom all the prophets had testified of, and in whom they all centred; See Gill on Matthew 17:5.
There came a (bright, luminous) cloud, overshadowing them - This seems to have been such a cloud of glory as accompanied Israel in the wilderness, which, as the Jewish writers observe, departed at the death of Moses. But it now appeared again, in honour of our Lord, as the great Prophet of the Church, who was prefigured by Moses. Hear ye him - Even preferably to Moses and Elijah.
*More commentary available at chapter level.