4. What then were these blasphemers able to say to such clear arguments?
They were put to silence, but their hearts were hardened, so that they did not heed his words. A hardened heart will not be instructed, no matter how plainly and clearly the truth is presented; but the faith of the righteous is strengthened when they see that the ground of their faith is right and good.
And for the sake of such we must answer those whose hearts are hardened, and put them to silence. Even though they will not be converted nor keep silence still it serves to reveal their hardened hearts, for the longer they talk the more foolish they become, and they are caught in their folly, and their cause is robbed of the appearance of being right and good, as Solomon also says in Proverbs 26:5: “Answer a fool according to his folly, lest he be wise in his own conceit.” That is, answer him according to his folly that his folly may be put to shame for the sake of others, that they may not follow him and be deceived, thinking that he is right. Otherwise, where no such condition exists, it is better to keep silent, as Solomon also says in the same chapter, verse 4 “Answer not a fool according to his folly, lest thou also be like unto him.”
5. Nor could they say here that the devils only pretended to be divided among themselves and to yield to one another in order to deceive the people, for it is publicly seen how they resist and contend, cry and rave, tear and rage, when they see that Christ means to expel them. It is then clearly seen that they are opposed to Christ and his Spirit, and they are not united with him, to whom they must yield so unwillingly. Therefore it is only a flagrant blasphemous lie, in which they are caught and put to shame, by which they try in venomous hate to give the devil credit for a work of God. From this we learn not to be surprised when our doctrine and life are blasphemed and stubborn hearts will not be convinced nor converted, although they are overwhelmed, as it were, with tangible truth and completely put to silence. It is enough that through our arguments their obstinate folly is revealed, acknowledged and made harmless to pious people, so that the latter may not be misled by its fine pretension. They may then go whither they will, they have condemned themselves as St. Paul says, Titus 3:11.
