Origen

“ But there is also something mystical in this doctrine, which announces that the varying appearances of Jesus are to be referred to the nature of the divine Word, who does not show Himself in the same manner to the multitude as He does to those who are capable of following Him to the high mountain which we have mentioned; for to those who still remain below, and are not yet prepared to ascend, the Word “has neither form nor beauty,” because to such persons His form is “without honour,” and inferior to the words given forth by men, which are figuratively termed “sons of men.” ”

“ Moreover it is not a subject of wonder that the matter, which is by nature susceptible of being altered and changed, and of being transformed into anything which the Creator chooses, and is capable of receiving all the qualities which the Artificer desires, should at one time possess a quality, agreeably to which it is said, “He had no form nor beauty,” and at another, one so glorious, and majestic, and marvellous, that the spectators of such surpassing loveliness—three disciples who had ascended (the mount) with Jesus—should fall upon their faces. ”