and his clothes became dazzling white
Transfiguration is not an easy word to grasp. Outside the Bible the only recent use is in the stories about Harry Potter, where Professor Dumbledore teaches a ‘Transfiguration’ class. But it really isn’t about transfiguration but rather transformation which is defined as changing from one thing into another. Jesus wasn’t transformed, he was transfigured and in this case, transfiguration is in seeing reality, seeing Jesus for who he really is, the Son of God. Jesus does not change form; he remains himself, only his divinity is revealed.
Transfiguration is defined as a marked change in form or appearance; a metamorphosis. In school I remember being taught that you cannot define a word using the word itself. For example, you can’t define “transfiguration as the act of being transfigured.” That makes perfect sense to me. But I believe that you should never use equally obscure, equally unknown words within a definition, like metamorphosis. The definition of metamorphosis is a change of physical form, structure, or substance especially by supernatural means. And supernatural is defined as departing from what is usual or normal especially so as to appear to transcend the laws of nature. So transfiguration really means to change one’s physical appearance in some unknown and unnatural way. Mark does not describe the transfiguration other than to say “He was transfigured before them and his clothes became dazzling white…” We can only imagine to what extent his physical appearance was changed.
Jesus revealed his divinity, his mighty power, his divine glory to prepare the apostles for what was to come, to help them understand the true nature of his passion, death, and resurrection. Jesus revealed his divine nature so that the apostles would see that it was not for any lack of power on his part that he allowed himself to be crucified by his enemies, but because he had freely chosen to suffer in that way for our salvation.