Luther himself could not be present on account of the decree of Worms, and hence the duty of preparing a complete exposition of the Protestant doctrine devolved upon the ablest of his lieutenants, Philip Melanchthon. He drew up and presented to the Diet the document known as the /Augsburg Confession/ (/Confessio Augustana/), accepted by Luther himself as a masterly though perhaps too moderate statement of the new teaching. The Confession was divided into two parts, the former of which consisted of twenty-one articles or dogmas of faith received by himself and his friends; the latter dwelt with what he termed abuses which they rejected, notable amongst these being celibacy of the clergy, monastic vows, auricular confession, private masses, communion under one kind, abstinence, and episcopal government. The Confession was drawn up very skilfully, great prominence being given to the doctrines on which all Christians were agreed, while the distinctive tenets of the Protestant reformers were put forward in their mildest and least offensive form. The document was read to the Diet in German by Bayer, Chancellor of the Elector of Saxony, and undoubtedly it produced a marked impression on the assembly. The Emperor held a conference with the Catholic princes, some of whom advocated prompt recourse to the sternest measures.
Others, however, amongst them being several of the ecclesiastical princes, misled by the temperate and, in a certain sense, misleading character of Melanchthon's statement, and believing that a peaceful solution to the religious difficulty was still possible, urged Charles V. to abstain from decisive action. It was agreed that the work of examining and refuting the Augsburg Confession should be entrusted to a certain number of Catholic theologians, the most prominent of whom were Eck, Cochlaeus, and Conrad Wimpina.[29] Unfortunately these men allowed their natural feelings of irritation to overcome their judgment, and not content with a calm and judicial refutation of the document submitted to them, they attacked warmly the exaggerations, contradictions, and misrepresentations of Catholic doctrine of which Luther had been guilty, and succeeded in imparting to their reply a bitter and ironical tone more likely to widen than to heal the division. At the request of the Emperor they modified it very considerably, confining themselves entirely to a brief and dispassionate examination of the individual points raised by Melanchthon, and in its modified form their refutation (/Confutatio Confessionis Augustanae/) was presented to the Diet (3rd Aug.).
When the reply of the Catholic theologians had been read the Emperor called upon the Protestant princes to return to the unity of the Church; but his appeal fell upon deaf ears, and it seemed as if the issue were to be decided immediately by civil war. By way of compromise it was suggested that representatives of both parties should meet in conference, Eck, Cochlaeus, and Wimpina being selected as the Catholic theologians, Melanchthon, Brenz, and Schnep as the champions of Lutherani**. From the very outset it should have been evident to all that, where disagreement was so fundamental, one party maintaining the theory of an infallible Church as the only safe guide in religious matters, the other rejecting entirely the authority of the Church and the Pope in favour of individual judgment, the discussion of particular dogmas could never lead to unity. As a matter of fact Melanchthon was willing to make most important concessions, and on the question of original sin, free-will, justification, faith, penance, and the intercession of the saints, formulas were put forward not displeasing to either party. Even in regard to the Eucharist, the jurisdiction of the bishops, and the supremacy of Rome, Melanchthon was inclined to go far to meet his opponents, much to the disgust of the extremists of his own party and to the no small alarm of Luther.[30] But in reality the apparent harmony existed only on paper, and the concessions made by Melanchthon depended entirely on the meaning that should be placed on the ambiguous phraseology and qualifications with which they were clothed. On the question of the Mass, the celibacy of the clergy, and the meritorious character of good works, no agreement was arrived at, as Melanchthon, alarmed by the opposition of his own supporters and the reproofs of Luther, was unwilling to modify his position. What the conference of theologians had failed to do was undertaken by a mixed commission consisting of princes, theologians, and lawyers, but without any result. In September the Emperor announced that he was endeavouring to procure the convocation of a General Council and that in the meantime the Protestants should return to the old faith, a certain time being allowed them for consideration, that they should attempt no further innovations or interference with the followers of the old faith, that they should restore the ecclesiastical goods which had been seized, and that they should unite with the Catholics in opposing the Anabaptists and the Sacramentarians.