We have already stated above that the angels are incorporeal. This agrees with the opinion of Aristotle: there is only this difference in the names employed—he uses the term “Intelligences,” and we say instead “angels.” His theory is that the Intelligences are intermediate beings between the Prime Cause and existing things, and that they effect the motion of the spheres, on which motion the existence of all things depends. This is also the view we meet with in all parts of Scripture; every act of God is described as being performed by angels. But “angel” means “messenger”; hence every one that is intrusted with a certain mission is an angel. Even the movements of the brute creation are sometimes due to the action of an angel, when such movements serve the purpose of the Creator, who endowed it with the power of performing that movement; e.g., “God hath sent His angel, and hath shut the lions’ mouths that they have not hurt me” (Dan. vi. 22). Another instance may be seen in the movements of Balaam’s ass, described as caused by an angel. The elements are also called angels. Comp. “Who maketh winds His angels, flaming fire His ministers” (Ps. civ. 4). There is no doubt that the word “angel” is used of a messenger sent by man; e.g., “And Jacob sent angels” (Gen. xxxii. 4); of a prophet, e.g., “And an angel of the Lord came up from Gilgal to Bochim” (Judges ii. 1); “And He sent an angel, and hath brought us forth out of Egypt” (Num. xx. 16). It is also used of ideals, perceived by prophets in prophetic visions, and of man’s animal powers, as will be explained in another place.