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.

30, 31. there talked with him two men … Moses and Elias … appeared in glory—"Who would have believed these were not angels had not their human names been subjoined?" [Bengel]. (Compare Ac 1:10; Mr 16:5). Moses represented "the law," Elijah "the prophets," and both together the whole testimony of the Old Testament Scriptures, and the Old Testament saints, to Christ; now not borne in a book, but by living men, not to a coming, but a come Messiah, visibly, for they "appeared," and audibly, for they "spake."