1 Corinthians 12:1-2
For these and such like things, (for one might mention many more,) point out to us both of these facts which follow; the compulsion which holds down the demons and makes them slaves; and the violence to which they submit who have once given themselves up to them, so as to swerve even from their natural reason. And the Pythoness too: (for I am compelled now to bring forward and expose another disgraceful custom of theirs, which it were well to pass by, because it is unseemly for us to mention such things; but that you may more clearly know their shame it is necessary to mention it, that hence at least ye may come to know the madness and exceeding mockery of those that make use of the soothsayers): this same Pythoness then is said, being a female, to sit at times upon the tripod of Apollo astride, and thus the evil spirit ascending from beneath and entering the lower part of her body, fills the woman with madness, and she with dishevelled hair begins to play the bacchanal and to foam at the mouth, and thus being in a frenzy to utter the words of her madness. I know that you are ashamed and blush when you hear these things: but they glory both in the disgrace and in the madness which I have described. These then and all such things. Paul was bringing forward when he said, “You know that when you were Gentiles, you were led away unto those dumb idols, howsoever ye might be led.”
And because he was discoursing with those who knew well, he states not all things with exact care, not wishing to be troublesome to them, but having reminded them only and brought all into their recollection, he soon quits the point, hastening to the subject before him.
But what is, “unto those dumb idols?” These soothsayers used to be led and dragged unto them.
But if they be themselves dumb, how did they give responses to others? And wherefore did the demon lead them to the images? As men taken in war, and in chains, and rendering at the same time his deceit plausible. Thus, to keep men from the notion that it was just a dumb stone, they were earnest to rivet the people to the idols that their own style and title might be inscribed upon them. But our rites are not such. He did not however state ours, I mean the prophesyings. For it was well known to them all, and prophecy was exercised among them, as was meet for their condition, with understanding and with entire freedom. Therefore, you see, they had power either to speak or to refrain from speaking. For they were not bound by necessity, but were honored with a privilege. For this cause Jonah fled; for this cause Ezekiel delayed; for this cause Jeremiah excused himself. And God thrusts them not on by compulsion, but advising, exhorting, threatening; not darkening their mind; for to cause distraction and madness and great darkness, is the proper work of a demon: but it is God's work to illuminate and with consideration to teach things needful.
3. This then is the first difference between a soothsayer and a prophet; but a second and a different one is that which he next states, saying,
Source: Homilies on First Corinthians (New Advent)