Bede the Venerable
Catena Aurea · Lukasevangelium 9
And it came to pass about an eight days after these sayings, he took Peter and John and James, and went up into a mountain to pray. And as he prayed, the fashion of his countenance was altered, and his raiment was white and glistering. And, behold, there talked with him two men, which were Moses and Elias: Who appeared in glory, and spake of his decease which he should accomplish at Jerusalem.
Now the transfigured Saviour shews the glory of His own coming, or our resurrection; who as He then appeared to His Apostles shall in like manner appear to all the elect. But the raiment of the Lord is taken for the band of His Saints, which in truth when our Lord was upon earth seemed to be despised, but when He sought the mount, shines with a new whiteness; for now are we the sons of God; and it does not yet appear what we shall be. But we know that, when he shall appear, we shall be like him. (1 John 3:2.)