Origen

“ But of these things Celsus knew nothing, or he would not have made use of language like this: “Is not everything which happens in the universe, whether it be the work of God, of angels, of other demons, or of heroes, regulated by the law of the Most High God? Have these not had assigned to them various departments of which they were severally deemed worthy? Is it not just, therefore, that he who serves God should serve those also to whom God has assigned such power?” To which he adds, “It is impossible, they say, for a man to serve many masters.” ”

“ For we must determine whether the Word of God, who governs all things, has appointed wicked demons for certain employments, in the same way as in states executioners are appointed, and other officers with cruel but needful duties to discharge; or whether as among robbers, who infest desert places, it is customary for them to choose out of their number one who may be their leader,—so the demons, who are scattered as it were in troops in different parts of the earth, have chosen for themselves a chief under whose command they may plunder and pillage the souls of men. ”