“And was transfigured before them: and his face did shine as the sun, and his raiment was white as the light.”
King James Version (KJV)
17:2 And was transfigured - Or transformed. The indwelling Deity darted out its rays through the veil of the flesh; and that with such transcendent splendour, that he no longer bore the form of a servant. His face shone with Divine majesty, like the sun in its strength; and all his body was so irradiated by it, that his clothes could not conceal its glory, but became white and glittering as the very light, with which he covered himself as with a garment.
Mt 17:2 He was transfigured before them. That is, transformed, changed in form. The great object was to reveal to the disciples his Divine glory before they beheld his humiliation upon the cross, in order to sustain their faith in the hour of trial. His face did shine as the sun. Thus John describes the glorified Savior when he beheld him on Patmos: "His face as the sun when he shineth in his strength" (Re 1:16). His raiment was white as the light. Mark says, "white as snow" (Mr 9:3). The comparison may have been suggested by the snow of Hermon. It was a vision of supernatural splendor.