23. If any one shall then say to you. He again repeats what he had said about impostors, and not without reason; for there was great danger arising from this temptation, that wretched men, while their affairs were in a troubled and desperate condition, would be deceived by false pretenses, would seek phantoms instead of Christ, and would embrace the delusions of Satan, as if they were assistance from God. As the Jews, when they were so severely oppressed on account of having despised redemption, needed, at least, violent remedies to restrain them from treachery, Satan cunningly held out to them new hopes, which would withdraw them still farther from God. And certainly, when we are left without direction in adversity, nothing is more pernicious than to be deceived, under the disguise of the name of God, by falsehoods which not only shut against us the door of repentance, but increase the darkness of infidelity, and at length overwhelm us with despair, and drive us to madness. The repetition of the statement, therefore, was far from being superfluous, when the danger was so great; and especially when Christ warns them that false prophets will come prepared with no ordinary instruments of deception, with signs and wonders fitted to confound weak minds. For since it is by miracles that God attests the presence of his power, and since they are therefore seals of the true doctrine, we need not wonder if impostors gain credit by them. By this kind of delusion God revenges the ingratitude of men, that they who rejected the truth may believe a lie, and that they who shut their eyes against the light which was offered to them may be plunged deeper and deeper in darkness. He exercises, at the same time, the constancy of his followers, which comes to shine with greater brightness, when they give way to no kind of impostures.
Again, since our Lord declares that antichrists and false prophets would be armed with miracles, there is no reason why the Papists should talk so haughtily on this ground, or why we should be terrified by their boasting. In support of their superstitions they plead miracles, — those very miracles which, the Son of God predicted, would corrupt the faith of many, and which, therefore, wise men ought not to hold in such estimation as to be sufficient of themselves to prove either one or another kind of doctrine. If it be objected, that such reasoning would overthrow and set aside the miracles by which both the Law and the Gospel were ratified, I reply, that the Spirit engraved on them an undoubted mark, which removed from believers all doubt and fear of being mistaken. For when God displayed his power for the purpose of confirming his people, he did not act in so confused a manner as not to manifest the true and infallible distinction. Besides, the manner in which miracles seal doctrine is such, that the doctrine itself mutually shines before them, and dispels all the clouds by which Satan darkens the minds of the simple. In short, if we wish to guard against impostures, let us preserve the connection between miracles and doctrine unbroken.