Driven by the consciousness of sin and the desire of spiritual peace he had, at the age of twenty-two, entered the Order of the Augustinian Friars at Erfurt, much against the wish of his father (1505). Here he subjected himself to the severest discipline, but without avail. ‘If ever a monk had got to heaven by monkery, I should have been he,’ he said subsequently; ‘for all that a monk could do, I did.’ Repeated acts of penance did not save him from new temptations, and God remained in his eyes an inexorable judge, demanding obedience to an impossible law. From this condition of despair, Luther was delivered by Staupitz, the Vicar-General of his Order, who counselled a closer study of the Bible, especially of the writings of St. Paul, and of the Latin father, St. Augustine. Here, in the Augustinian doctrine of justification by faith, he at last found peace; in the text, ‘The just shall live by faith,’ appeared the solution of his difficulties. The sinner was not to be saved by his own efforts or work, but by throwing himself unreservedly on the mercies of a loving God; thus received into a state of grace, the faithful believer found penitence no longer painful, but a spontaneous act of love, while work and life for God alone became easy. In this view he was strengthened at a later date by discovering that the Greek word for penitentia was μετάνοια—in other words, that the efficacy of penance did not consist in the external ecclesiastical penalty, but in the inward change of heart. In thus asserting the Augustinian doctrine of justification by faith, Luther was only reviving what had been held by many Fathers of the early Church—a doctrine which had indeed of late been overclouded by the contrary one of the justification by works, but which had never been wholly discarded. It is no doubt true that these opposing and contradictory dogmas are incapable of entire reconciliation, nor must either of them be forced to their logical conclusion, for if we are justified by God’s grace alone, where is the necessity for works; and if by works alone we are saved, where is the need for a Redeemer? No doubt, once more, the doctrine of the justification by faith is, if it be carried to an extreme, apt to lead, and has in fact led, to fanatical fatalism and antinomianism. To Luther, however, it seemed that the evils which followed on the adoption of the contrary doctrine were worse; as if frail men could by their unaided efforts extort salvation from the Almighty. To hold this view was to nurse that very spiritual pride which was the cause of the existing corruption. The only hope for moral reformation lay in bringing man to believe in his utter unworthiness in the sight of God; thus alone could he attain that spirit of humility which was the essential preliminary to a godly life.

In 1508, Luther was summoned by Staupitz to teach at the university of Wittenberg, just founded by Frederick the Wise of Saxony. In 1510, he visited Rome, a visit which only served to strengthen him in his conviction that spiritual pride, the characteristic fault of the Renaissance, was the enemy to be withstood, and to deepen his dislike of those ceremonial observances of the Church which consecrated the belief in the efficacy of works. Luther had returned to Wittenberg to carry on his teaching, when the visit of Tetzel, a Dominican, to Germany, offering papal indulgences to those who would contribute money to the building of St. Peter’s at Rome, aroused him to immediate action. The doctrine of indulgences originated in the not unnatural view, that while penitence reconciled the sinner to God, the wrong done to man had yet to be punished, and that the punishment, like that for worldly offences, could be commuted by a fine. But the system had been shamefully abused. The Church declared that she held, in the works of supererogation of the faithful, a treasure from which she could draw for the remission of penalties, and, in her eager desire to gain money, granted indulgences carelessly and without insisting on the previous penitence of the offender. She even claimed the power of remitting the punishment of those in purgatory. Whatever may be said in defence of the primitive system of indulgences, it cannot be denied that in their exaggerated form they led to grievous abuse, and involved a flat denial of the necessity of grace. Accordingly Luther, in pursuance of academic custom, nailed on the door of the church at Wittenberg his famous ninety-five theses, in which he controverted the theory of indulgences, and challenged all comers to disprove the correctness of his statements (October 17, 1517).

The views of Luther were not original. Several theologians before him, even Cardinal Ximenes himself, had protested against the scandalous abuse of indulgences. Nor did Luther dream of rebelling against Mother Church. He did not deny the value of indulgences altogether, but declared that, in his opinion, the Pope could not thereby remit the guilt of sin nor abate the penalties of those who had already passed to their account. Further, he declared that the extravagant views he was combating were the invention of the schoolmen, not of the Church, which had never formally accepted them. He therefore demanded an expression of the mind of the Pope and Church thereon. Luther asked for discussion and for argument; he was met with assertion and denunciation. Tetzel in his answer disdained to discuss the question of indulgences at all, and he asserted the claim of the Pope to determine matters of opinion and to interpret Scripture. The Dominican Prierias declared that neither a Council presided over by the Pope, nor the Pope himself, could err when he gave an official decision, and branded all those as heretics who did not accept the doctrines of the Church and Popes, as the rule of faith. Cardinal Cajetan, who was sent as papal legate to the Diet of Augsburg in 1518, although he secretly agreed with Luther as to the abuse of indulgences, refused all disputation, and demanded a recantation and silence for the future. Luther’s subsequent promise to keep silence on his part, if it were adhered to on the other, could not possibly be kept, and the discussion soon broke out afresh.

Meanwhile, the ground of controversy had shifted. It was no longer a question of indulgences, but of papal power and the authority of tradition. The extravagant assertions of the papal advocates were met by more outspoken, more violent, and sometimes by unseemly language on the part of Luther. Wider reading now convinced him that his views were not novel, but had been anticipated by others, such as John Huss, John Wessel, and even by the humanist Laurentius Valla; while he was strengthened by the increasing support he met with in Germany. Ulrich von Hutten, a man whose love of satire outran his better taste, embittered the controversy by the biting epigrams of his Vadiscus (1519): ‘Three things maintain the dignity of Rome—the authority of the Pope, the relics of the saints, the sale of indulgences. Three things are feared at Rome—a General Council, a reform of the Church, the opening of the eyes of the Germans. Three things are excommunicated at Rome—indigence, the primitive Church, the preaching of truth.’ Finally, Luther, in his Address to the Christian Nobility of the German Nation (July, 1520), still more in his tractate on the Babylonish Captivity (October, 1520), was led on not only to deny the authority of the Pope, but to question the divine institution of the priesthood, and the authority of tradition, and to attack the mediæval doctrine of Transubstantiation. That Luther had now definitely put himself outside the Church, cannot be gainsaid. Yet at least it should be remembered that he was driven to his final position by the knowledge that he was already condemned, and that the Bull of excommunication had been issued as early as June 1520, although not published in Germany till later. Luther, therefore, throwing all hopes of conciliation to the winds, declared the Bull a forgery and the author of it Antichrist, and on December 10, 1520, burnt it publicly at Wittenberg.

Whether, considering the character of Luther, his earnestness, his bluntness, his fearlessness, his want of scholarly refinement, and his violence, he might have been checked by a more conciliatory attitude on the part of his opponents; or whether, again, had he been conciliated, another leader in the existing ferment of German feeling would not have arisen, may well be questioned. But at least the conduct of the papal court could not have been more indiscreet or less statesmanlike. Leo X. himself, with his cynical indifference to such matters, might very possibly have acted otherwise; but the attack on indulgences threatened the whole machinery of papal finance and administration, and the officials of the Curia drove him on. We cannot but deplore that a Church, which could treat with leniency unorthodoxy on such fundamental questions as the immortality of the soul, should have refused to listen to the criticism of her system of indulgences, especially as we know that the system, in its abuse at any rate, pricked the consciences of so many of her most loyal sons. That the conduct of Luther is open to blame must be allowed. That he too lightly cast away the traditions of the Church, and too confidently believed in the possibility of finding all that was necessary to salvation, and for the organisation of the Church in the Bible alone; that many of his doctrines have been exaggerated and have led to much evil; that the immediate results of the Reformation were neither to promote learning, nor to advance the spirit of toleration—all this cannot be denied. That the revolt which was thus inaugurated was to break the unity of the Church, to lead to endless schism, and verily to bring a sword on earth, we must all regret. But Rome, at least, determined that it should be so; and we may fairly doubt whether the reform of that corruption, which had eaten so deeply into her system, could have been effected at a less costly price.

Such was the position of affairs when the Diet of Worms met. The question was whether the Diet would enforce the Bull and place Luther under the ban of the Empire—a question fraught with momentous issues.Luther and the Diet. Leo X., without allowing Luther to be heard in self-defence, urged Charles to execute the Bull. But though the Emperor himself was in favour of such a course, and was supported by his confessor Glapion, many of his advisers, notably Chièvres, and Gattinara, his chancellor, were of a contrary opinion. They knew the support which Luther had already received in Germany from the poorer nobles, the poets, the lawyers, and the men of letters, and what that support was we may learn from the papal agent, Aleander: ‘Nine-tenths of Germany shouts for Luther; and the other one-tenth, if it does not care for Luther, at least cries, Down with the Roman court, and demands a Council to be held in Germany.’ It was not to be expected that the Diet would dare to disregard this popular feeling. Moreover, although the majority were wholly opposed to the doctrinal views held by Luther, many of its members sympathised with his desire for reform in matters of Church government and discipline. The Diet, therefore, demanded that Luther should be heard, declaring at the same time that, if he persisted in his heretical views, contrary to the doctrine and faith ‘which they, their fathers, and fathers’ fathers had held,’ they were ready to condemn him. Besides all this, the advisers of Charles were not blind to the political advantages which might be gained from the situation. Maximilian had once said: ‘Let the Wittenberg monk be taken good care of; we may want him some day,’—and the day had come. Leo was still hesitating between the alliance of Charles and Francis, and the threat of referring the whole question to a General Council might be used to force his hand.

Luther was accordingly summoned to Worms under promise of a safe-conduct. If now he had consented to retract his doctrines on matters of faith, and had confined himself to the question of internal reform, he would probably have received the hearty support of the Diet. But this was far from his intention, and his uncompromising conduct played for the moment into the hands of Rome. He had expected that he would be asked for a defence of his opinions; he was ordered to retract his heresies on points of doctrine. This he declined to do. To the demand that he would acknowledge the Emperor and the Diet as judges of his doctrines, he answered that he would not allow men to judge of God’s word. He even refused to submit to the decisions of a General Council ‘unless his views were refuted by Scripture or by cogent reason.’ Thus he became in the eyes of Charles not only a heretic, but, what was worse, a rebel; and the alliance of the Pope having now been secretly secured, Luther was no longer wanted for political purposes. Charles, therefore, was eager for the publication of the ban and for an order that the books of the heretic should be burnt. So great, however, was the repugnance of the Diet to face the unpopularity of this act that Charles only succeeded in gaining its assent at its last session (May 25), after Frederick of Saxony and the Elector Palatine had left. Luther meanwhile had fled to the Castle of the Wartburg in Saxony, where he lay hid under the protection of Frederick the Wise. He had now been excommunicated, and the excommunication had been ratified by the Diet. The future was to see whether the Emperor could enforce the decision of the Diet in Germany.

§ 4. The War, 1522–1523.

At this moment the attention of Charles was directed to the war against Francis. The humiliation of his rival, and the conquest of Italy, were the first essentials; till these were attained, the affair of Luther might wait. The French had been the first to assume the offensive. Already, in May, they had invaded Navarre, while in the previous March, Robert de la Marck, the Lord of Bouillon, had attacked Luxembourg. These expeditions, however, had both failed, and Charles now secured the alliance, not only of the vacillating Pope, but also of Henry VIII.Leo X. and Henry VIII. ally themselves with Charles V. Leo X. had been gratified at the publication of the ban against Luther. He convinced himself that the victory of the French in Italy would be more disastrous than that of Charles, and on May 25 definitely joined the Emperor. Ferrara and Parma were to be restored to the Pope. Milan was to be held as a fief of the Empire by Francesco Sforza, son of Ludovico il Moro; the French were to be driven from Genoa, and Antonio Adorno set up as Doge; the Emperor promised to protect the Medici in Florence, and to join the Pope in extirpating the heresy of Luther.

In November, Wolsey, after in vain attempting to continue his policy of mediation at the Conference of Calais, was forced at last to declare himself. He joined the league of Emperor and Pope, and promised to aid Charles in a joint invasion of France: the Emperor, on his part, engaged to marry the Princess Mary.