Isaías 6
Philoxenus of Mabbug
Isaías 6:2
And thus also is it in respect of the spiritual natures and orders of celestial beings, and it is faith which maketh it possible to receive every word which is spoken concerning them; for otherwise there must necessarily be unbelief, since the Book calleth them "absolute spiritual beings" [in one place], and in another it speaketh of them as "compacted bodies," to which it attributeth forms which are different from each other. Concerning the Seraphim we are told by the word of the Book [that they have] wings and faces, and concerning the Cherubim [we are told that they have] other forms which are different from each other; which of these statements are we to accept as true? for according to the outward hearing of the word each contradicts the other. The statement that they are spirits we believe, the statement that they are compacted bodies we hold to be true, the statement that their construction consisteth of forms of different kinds we accept; and we receive them all by faith. — 13 Ascetic Discourses, Discourse 2 -- On Faith
Isaías 6:3
"A thousand thousand stand before Him, and ten thousand times ten thousand minister unto Him"; now this concerneth the Seraphim who stand above Him, having their wings spread out to fly, and this one crieth to this, saying, "Holy, Holy, Holy." And concerning the Cherubim it is written that they were yoked unto a chariot, and while their faces looked downwards, the motions of their spiritual natures were directed whither was the Most High. And spiritual beings stand in this service, and the hosts and ranks of heaven are obedient unto the word of Jesus. And concerning the Apostles it is written, "They shall sit upon thrones," and this indicateth to us the greatness of their honour, and their equality with Him in inheritance. — 13 Ascetic Discourses, Discourse 9 -- Second Discourse on Poverty