He is Himself the Maker and Creator of the angels: for He brought them out of nothing into being and created them after His own image, an incorporeal race, a sort of spirit or immaterial fire: in the words of the divine David, He maketh His angels spirits, and His ministers a flame of fire Ps. civ. 4.: and He has described their lightness and the ardour, and heat, and keenness and sharpness with which they hunger for God and serve Him, and how they are borne to the regions above and are quite delivered from all material thought Greg. Naz., Orat. 38..