But he was still more troubled on account of his relations with Luther, with whom he was at variance at this time. This was caused by Melanchthon's changed views of the doctrine of the Lord's Supper. We have remarked before that it was an arbitrary act on his part, and one which has done much harm, to alter the Augsburg Confession. For it was not his private work, but a public Confession. He altered this document in the editions of 1533 and 1535, but it was not until the year 1540 that he published a greatly changed edition. An old account says that Luther found fault with him on this account, and said to him: "Philip, you are not acting rightly in altering the Augsburg Confession so often, for it is not your book, but the book of the Church." These alterations particularly referred to the doctrine of the Lord's Supper, with which Eck had reproached him at Worms. He expressed this article in such a manner that the Catholics and the Reformed could include their views. This may have been satisfactory enough to the Reformed, but the Lutherans were highly displeased. Luther adhered to the bodily eating and drinking of the body and blood, as he had taught from the beginning. Although he had not laid so great a stress upon this point for the last few years, he now asserted it again. There were some faithful adherents of the Gospel in Venice, who were compelled to endure great oppression. They applied to Luther, and complained of their afflictions, and spoke particularly also of the spread of the Swiss views of the Lord's Supper. Luther replied, that he had only formed a concord with the Upper Germans, but would have nothing to do with the Swiss, particularly those of Zurich. They are indeed learned, but intoxicated men, who merely eat common bread in the Lord's Supper. They should beware of false prophets, and adhere strictly to the doctrine of the connection of the body and blood of Christ with the bread and wine, even if many should think of a transubstantiation. When Melanchthon heard of this letter, he was much grieved, for he thought that Luther had conceded transubstantiation, which, however, was not the case. But the flame only began to break forth somewhat in the year 1544. During this year the Reformation book of Cologne was brought to Wittenberg. When Luther came to the article on the Lord's Supper, he would not read any further, and wrote to Chancellor Brueck, who had sent it for his inspection, by the order of the Elector: "The book does not only tolerate, but encourages the fanatics, and is far more favorable to _their_ doctrine than our own. If I am to read the whole of it, our gracious Master must allow me further time, until my displeasure has abated. Otherwise I do not wish to look at it. And besides this, as the Bishop shows, it is altogether too long and too great nonsense, so that I can well perceive that chatterer, Bucer, in it." It is true that Bucer had prepared the book, but not without Melanchthon's approbation.