But see, I pray you, after such signs had been wrought, what evils within a short space ensue. Such is human nature: it soon forgets. Or, do ye not remember what has been the case among ourselves? Did not God last year shake our whole city? Did not all run to baptism? Did not whoremongers and effeminate and corrupt persons leave their dwellings, and the places where they spent their time, and change and become religious? But three days passed, and they returned again to their own proper wickedness. And whence is this? From the excessive laziness. And what marvel if, when the things have passed away (this be the case), seeing that, the images lasting perpetually, the result is such? The fate of Sodom— say, does it not still last (in its effects)? Well, did the dwellers beside it become any the better? And what say you to the son of Noah? Was he not such (as he is represented), did he not see with his eyes so vast a desolation, and yet was wicked? Then let us not marvel how, when such things had been done, these Jews (at Ephesus) believe not, when we see that belief itself often comes round for them into its opposite, into malignity; as, for instance, when they say that He has a devil, He, the Son of God! Do you not see these things even now, and how men are many of them like serpents, both faithless and thankless, men who, viper-like, when they have enjoyed benefits and have been warmed by some, then they sting their benefactors? This we have said, lest any should marvel, how, such signs having been wrought, they were not all converted. For behold, in our own times happened those (miracles) relating to the martyr Babylas, those relating to Jerusalem, those relating to the destruction of the temples, and not all were converted. Why need I speak of ancient things? I have told you what happened last year; and none gave heed to it, but again little by little they fell off and sunk back. The heaven stands perpetually crying aloud that it has a Master, and that it is the work of an Artificer, all this that we see— I mean the world— and yet some say that it is not so. What happened to that Theodorus last year— whom did it not startle? And yet nothing came of it, but having for a season become religious, they returned to the point from which they had started in their attempt to be religious. So it was with the Jews. This is what the Prophet said of them: “When He slew them, then they sought Him, and turned early unto God.” And what need to speak of those things that are common to all? How many have fallen into diseases, how many have promised, if raised up, to work so great a change, and yet they have again become the same as ever! This, if nothing else, shows that we have natural free-will— our changing all at once. Were evil natural, this would not be: things that are natural and necessary, we cannot change from. “And yet,” you will say, “we do change from them. For do we not see some, who have the natural faculty to see, but are blinded by fear?” (True—) because this also is natural: * * if a different (necessity of) nature come not also into operation: (thus) it is natural to us, that being terrified we do not see; it is natural to us that when a greater fear supervenes, the other gives way. “What then,” you will say, “if right-mindedness be indeed according to nature, but fear having overpowered it cast it out?” What then if I shall show that some even then are not brought to a right mind, but even in these fears are reckless? Is this natural? Shall I speak of ancient things? Well then, of recent? How many in the midst of those fears continued laughing, mocking, and experienced nothing of the sort? Did not Pharaoh change immediately, and (as quickly) run back to his former wickedness? But here, as if (the demons) knew Him not, they (the exorcists) added, “Whom Paul preaches,” whereas they ought to have said, “the Saviour of the world.” “Him that rose again.” By this they show that they do know, but they did not choose to confess His glory. Wherefore the demon exposes them, leaping upon them, and saying, “Jesus I know, and Paul I know, but who are you?” So that not you are believers, but you abuse that Name when you say this. Therefore the Temple is desolate, the implement easy to be overcome. So that you are not preachers; mine, says he, you are. Great was the wrath of the demon. The Apostles had power to do this to them, but they did it not as yet. For they that had power over the demons that did these things to them, much more had power over the men themselves. Mark how their forbearance is shown, in that they whom they repulsed do these things, while the demons whom they courted do the contrary. “Jesus,” says he, “I know.” Be ashamed, you that are ignorant (of Him). “And Paul I know.” Well said, “Think not that it is because I despise them, that I do these things.” Great was the fear of the demon. And why without these words did he not rend their garments? For so he would both have sated his wrath, and established the delusion. He feared as I said, the unapproachable force, and would not have had such power had he not said this. But observe how we find the demons everywhere more right minded (than the Jews), not daring to contradict nor accuse the Apostles, or Christ. There they say, “We know You who You are”; and, “Why are You come hither before the time to torment us”: and again, “I know You who You are, the Son of God.” And here, “These men are servants of the most high God”: and again, “Jesus I know, and Paul I know.” For they exceedingly feared and trembled before those holy persons. Perhaps some one of you, hearing of these things, wishes he were possessed of this power, so that the demons should not be able to look him in the face, and accounts those saints happy for this, that they had such power. But let him hear Christ saying, “Rejoice not because the demons are subject unto you”, because He knew that all men rejoice most in this, through vainglory. For if you seek that which pleases God, and that which is for the common good, there is another, a greater way. It is not so great to free from a demon as it is to rescue from sin. A demon hinders not to attain unto the kingdom of Heaven, nay, even cooperates, unwillingly indeed, but nevertheless cooperates by making him that has the demon more sober-minded; but sin casts a man out.
But it is likely some man will say, “God forbid it should ever befall me to be sobered in this way!” Nor do I wish it for you, but a very different way, that you should do all from love of Christ: if however, which God forbid, it should so befall you, then even on this behalf I would comfort you. If then the demon does not cast out (from the kingdom of heaven), but sin does cast out, to free a man from sin is greater beneficence.
Source: Homilies on Acts (New Advent)