These ideas of intolerance were so fixed in the public mind at the close of the Middle Ages, that even those who protested against the procedure of the Inquisition thought that in principle it was just. Farel wrote to Calvin, September 8, 1533: "Some people do not wish us to prosecute heretics. But because the Pope condemns the faithful (i.e., the Huguenots) for the crime of heresy, and because unjust judges punish the innocent, it is absurd to conclude that we must not put heretics to death, in order to strengthen the faithful. I myself have often said that I was ready to suffer death, if I ever taught anything contrary to sound doctrine, and that I would deserve the most frightful torments, if I tried to rob any one of the true faith in Christ. I cannot, therefore, lay down a different law to others."[1]
[1] _OEuvres complètes de Calvin_, Brunswick, 1863-1909, vol. xiv, p. 612.
Calvin held the same views. His inquisitorial spirit was manifest in his bitter prosecution and condemnation of the Spaniard Michael Servetus.[1] When any one found fault with him he answered: "The executioners of the Pope taught that their foolish inventions were doctrines of Christ, and were excessively cruel, while I have always judged heretics in all kindness and in the fear of God; I merely put to death a confessed heretic."[2] Michael Servetus assuredly did not gain much by the substitution of Calvin for the Inquisition.
[1] Servetus was condemned October 26, 1553, to be burned alive, and was executed the next day. As early as 1545, Calvin had written: "If he (Servetus) comes to Geneva, I will never allow him to depart alive, as long as I have authority in this city: _Vivum exire numquam patiar_. _OEuvres complètes_, vol. xii, p. 283." Calvin, however, wished the death penalty of fire to be commuted into some other kind of death.
[2] To justify this execution, Calvin published his _Defensio orthodoxæ fidei de sacra Trinitate, contra prodigiosos errores Michaelis Serveti Hispani, ubi ostenditur hæreticos jure gladii coercendos esse_, Geneva, 1554.
Bullinger of Zurich, speaking of the death of Servetus, thus wrote Lelius Socinus: "If, Lelius, you cannot now admit the right of a magistrate to punish heretics, you will undoubtedly admit it some day. St. Augustine himself at first deemed it wicked to use violence towards heretics, and tried to win them back by the mere word of God. But finally, learning wisdom by experience, he began to use force with good effect. In the beginning the Lutherans did not believe that heretics ought to be punished; but after the excesses of the Anabaptists, they declared that the magistrate ought not merely to reprimand the unruly, but to punish them severely as an example to thousands."