Osee 4:12

6. At last when the dragon could not even thus overthrow Antony, but saw himself thrust out of his heart, gnashing his teeth as it is written, and as it were beside himself, he appeared to Antony like a black boy, taking a visible shape in accordance with the colour of his mind. And cringing to him, as it were, he plied him with thoughts no longer, for guileful as he was, he had been worsted, but at last spoke in human voice and said, ‘Many I deceived, many I cast down; but now attacking thee and thy labours as I had many others, I proved weak.’ When Antony asked, Who art thou who speakest thus with me? he answered with a lamentable voice, ‘I am the friend of whoredom, and have taken upon me incitements which lead to it against the young. I am called the spirit of lust. …

15. But sin also is called spirit, as I have already said; only in another and opposite sense, as when it is said, The spirit of whoredom caused them to err . The name “spirit” is given also to the unclean spirit , the devil; but with the addition of, “the unclean;” for to each is joined its distinguishing name, to mark its proper nature. If the Scripture speak of the soul of man, it says the spirit with the addition, of the man ; if it mean the wind, it says, spirit of storm ; if sin, it says, spirit of whoredom ; if the devil, it says, an unclean spirit : that we may know which particular thing is spoken of, and thou mayest not suppose that it means the Holy Ghost; God forbid! For this name of spirit is common to many things; and every thing which has not a solid body is in a general way called spirit. …

But it is clearly proved that there exist in unclean spirits as many desires as there are in men. For some of them, which are commonly called Plani, are shown to be so seductive and sportive that, when they have taken continual possession of certain places or roads, they delight themselves not indeed with tormenting the passers by whom they can deceive, but, contenting themselves merely with laughing at them and mocking them, try to tire them out rather than to injure them: while some spend the night merely by harmlessly taking possession of men, though others are such slaves to fury and ferocity that they are not simply content with hurting the bodies of those of whom they have taken possession, by tearing them in a dreadful manner, but actually are eager to rush upon those who are passing by at a distance, and to attack them with most savage slaughter: like those described in the gospe …

But as the renewal of our soul grows by means of this study, Scripture also will begin to put on a new face, and the beauty of the holier meanings will somehow grow with our growth. For their form is adapted to the capacity of man’s understanding, and will appear earthly to carnal people, and divine to spiritual ones, so that those to whom it formerly appeared to be involved in thick clouds, cannot apprehend its subtleties nor endure its light. But to make this which we are aiming at somewhat clearer by an instance, it will be enough to produce a single passage of the law, by which we can prove that all the heavenly commands as well are applied to men in accordance with the measure of our state. For it is written in the law: “Thou shalt not commit adultery.” This is rightly observed according to the simple meaning of the letter, by a man who is still in bondage to foul passions. …