Exorcisms of Popery

And he called them unto him, and said unto them in parables, How can Satan cast out Satan? And if a kingdom be divided against itself, that kingdom cannot stand. And if a house be divided against itself, that house cannot stand. And if Satan rise up against himself, and be divided, he cannot stand, but hath an end.
—Mark 3:23–26

John Calvin:
In refuting the calumny alleged against him, he first quotes a common proverb. This refutation may appear to be not quite satisfactory. We know what subtle methods Satan sometimes employs, presenting all the while an appearance of discord, in order to entrap the minds of men by superstitions. Thus, for example, the exorcisms of Popery are nothing else than feats of dexterity, in which Satan pretends to fight with himself. But no suspicion of this nature fell on Christ; for he cast out devils in such a manner, as to restore to God the men in whom they dwelt sound and whole. Whenever Satan enters into a collusion with himself, he pretends to be vanquished, and yet it is himself that triumphs. But Christ attacked Satan in open combat, threw him down, and left him nothing remaining. He did not lay him low in one respect, that he might give him greater stability in another, but stripped him completely of all his armor. Christ therefore reasons justly, that there is no community of interest between him and Satan, because that father of cunning keeps one object in view—the preservation of his kingdom.