Dreading nothing so much as a violent catastrophe, the humanist labored for the next two years to find a peaceful solution for the threatening problem. Seeing that Luther's two chief errors were that he "had attacked the crown of the pope and the bellies of the monks," Erasmus pressed upon men in power the plan of allowing the points in dispute to be settled by an impartial tribunal, and of imposing silence on both parties. At the same time he begged Luther to do nothing {105} violent and urged that his enemies be not allowed to take extreme measures against him. But after the publication of the pamphlets of 1520 and of the bull condemning the heretic, this position became untenable. Erasmus had so far compromised himself in the eyes of the inquisitors that he fled from Louvain in the autumn of 1521, and settled in Basle. He was strongly urged by both parties to come out on one side or the other, and he was openly taunted by Ulrich von Hutten, a hot Lutheran, for cowardice in not doing so. Alienated by this and by the dogmatism and intolerance of Luther's writings, Erasmus finally defined his position in a Diatribe on Free Will. [Sidenote: 1524] As Luther's theory of the bondage of the will was but the other side of his doctrine of justification by faith only—for where God's grace does all there is nothing left for human effort—Erasmus attacked the very center of the Evangelical dogmatic system. The question, a deep psychological and metaphysical one, was much in the air, Valla having written on it a work published in 1518, and Pomponazzi having also composed a work on it in 1520, which was, however, not published until much later. It is noticeable that Erasmus selected this point rather than one of the practical reforms advocated at Wittenberg, with which he was much in sympathy. Luther replied in a volume on The Bondage of the Will reasserting his position more strongly than ever. [Sidenote: 1525] How theological, rather than philosophical, his opinion was may be seen from the fact that while he admitted that a man was free to choose which of two indifferent alternatives he should take, he denied that any of these choices could work salvation or real righteousness in God's eyes. He did not hesitate to say that God saved and damned souls irrespective of merit. Erasmus answered again in a large work, the Hyperaspistes (Heavy-Armed Soldier), which came {106} out in two parts. [Sidenote: 1526-7] In this he offers a general critique of the Lutheran movement. Its leader, he says, is a dogmatist, who never recoils from extremes logically demanded by his premises, no matter how repugnant they may be to the heart of man. But for himself he is a humanist, finding truth in the reason as well as in the Bible, and abhorring paradoxes.
The controversy was not allowed to drop at this point. Many a barbed shaft of wit-winged sarcasm was shot by the light-armed scholar against the ranks of the Reformers. "Where Lutheranism reigns," he wrote Pirckheimer, "sound learning perishes." "With disgust," he confessed to Ber, "I see the cause of Christianity approaching a condition that I should be very unwilling to have it reach . . . While we are quarreling over the booty the victory will slip through our fingers. It is the old story of private interests destroying the commonwealth." Erasmus first expressed the opinion, often maintained since, that Europe was experiencing a gradual revival both of Christian piety and of sound learning, when Luther's boisterous attack plunged the world into a tumult in which both were lost sight of. On March 30, 1527, he wrote to Maldonato:
I brought it about that sound learning, which among the Italians and especially among the Romans savored of nothing but pure paganism, began nobly to celebrate Christ, in whom we ought to boast as the sole author of both wisdom and happiness if we are true Christians. . . . I always avoided the character of a dogmatist, except in certain obiter dicta which seemed to me conducive to correct studies and against the preposterous judgments of men.
In the same letter he tells how hard he had fought the obscurantists, and adds: "While we were waging a fairly equal battle against these monsters, behold {107} Luther suddenly arose and threw the apple of Discord into the world."
In short, Erasmus left the Reformers not because they were too liberal, but because they were too conservative, and because he disapproved of violent methods. His gentle temperament, not without a touch of timidity, made him abhor the tumult and trust to the voice of persuasion. In failing to secure the support of the humanists Protestantism lost heavily, and especially abandoned its chance to become the party of progress. Luther himself was not only disappointed in the disaffection of Erasmus, but was sincerely rebelled by his rationalism. A man who could have the least doubt about a doctrine was to him "an Arian, an atheist, and a skeptic." He went so far as to say that the great Dutch scholar's primary object in publishing the Greek New Testament was to make readers doubtful about the text, and that the chief end of his Colloquies was to mock all piety. Erasmus, whose services to letters were the most distinguished and whose ideal of Christianity was the loveliest, has suffered far too much in being judged by his relation to the Reformation. By a great Catholic[1] he has been called "the glory of the priesthood and the shame," by an eminent Protestant scholar[2] "a John the Baptist and Judas in one."
[Sidenote: Sacramentarian schism]
The battle with the humanists was synchronous with the beginnings of a fierce internecine strife that tore the young evangelical church into two parts. Though the controversy between Luther and his principal rival, Ulrich Zwingli, was really caused by a wide difference of thought on many subjects, it focused its rays, like a burning-glass, upon one point, the doctrine of the real presence of the body and blood of Christ in the {108} eucharist. The explanation of this mystery evolved in the Middle Ages and adopted by the Lateran Council of 1215, was the theory, called "transubstantiation," that the substance of the bread turned into the substance of the body, and the substance of the wine into the substance of the blood, without the "accidents" of appearance and taste being altered. Some of the later doctors of the church, Durand and Occam, opposed this theory, though they proposed a nearly allied one, called "consubstantiation," that the body and blood are present with the bread and wine. Wyclif and others, among whom was the Italian philosopher Pico della Mirandola, proposed the theory now held in most Protestant churches that the bread and wine are mere symbols of the body and blood.
At the dawn of the Reformation the matter was brought into prominence by the Dutch theologian Hoen, from whom the symbolic interpretation [Sidenote: Symbolism] was adopted first by Carlstadt and then by the Swiss Reformers Zwingli and Oecolampadius. Luther himself wavered. He attacked the sacrifice of the mass, in which he saw a "good work" repugnant to faith, and a great practical abuse, as in the endowed masses for souls, but he finally decided on the question of the real presence that the words "this is my body" were "too strong for him" and meant just what they said.
After a preliminary skirmish with Carlstadt, resulting in the latter's banishment from Saxony, there was a long and bitter war of pens between Wittenberg and the Swiss Reformers. Once the battle was joined it was sure to be acrimonious because of the self-consciousness of each side. Luther always assumed that he had a monopoly of truth, and that those who proposed different views were infringing his copyright, so to speak. "Zwingli, Carlstadt and Oecolampadius would never have known Christ's gospel rightly," he {109} opined, "had not Luther written of it first." He soon compared them to Absalom rebelling against his father David, and to Judas betraying his Master. Zwingli on his side was almost equally sure that he had discovered the truth independently of Luther, and, while expressing approbation of his work, refused to be called by his name. His invective was only a shade less virulent than was that of his opponent.
The substance of the controversy was far from being the straight alignment between reason and tradition that it has sometimes been represented as. Both sides assumed the inerrancy of Scripture and appealed primarily to the same biblical arguments. Luther had no difficulty in proving that the words "hoc est corpus meum" meant that the bread was the body, and he stated that this must be so even if contrary to our senses. Zwingli had no difficulty in proving that the thing itself was impossible, and therefore inferred that the biblical words must be explained away as a figure of speech. In a long and learned controversy neither side convinced the other, but each became so exasperated as to believe the other possessed of the devil. In the spring of 1529 Lutherans joined Catholics at the Diet of Spires in refusing toleration to the Zwinglians. The division of Protestants of course weakened them. Their leading statesman, Philip, Landgrave of Hesse, seeing this, did his best to reconcile the leaders. For several years he tried to get them to hold a conference, but in vain. Finally, he succeeded in bringing together at his castle at Marburg on the Lahn, Luther, Melanchthon, Zwingli, Oecolampadius, and a large number of other divines. [Sidenote: Marburg colloquy October 1-3, 1529] The discussion here only served to bring out more strongly the irreconcilability of the two "spirits." Shortly afterwards, when the question of a political alliance came up, the Saxon theologians drafted a memorial stating that {110} they would rather make an agreement with the heathen than with the "sacramentarians." [Sidenote: 1530] The same attitude was preserved at the Diet of Augsburg, where the Lutherans were careful to avoid all appearance of friendship with the Zwinglians lest they should compromise their standing with the Catholics. Zwingli and his friends were hardly less intransigeant.