This passage may fairly be regarded as the germ of the _Open Letter_. The ideas of the latter work are suggested with sufficient clearness to show that its materials are already at hand, and its plan already in the author's mind. The threat to write it is scarcely veiled. That Luther did not wait for that particular Romanist to "come again" may have been due to the intervention of another Romanist, none other than his old opponent, Sylvester Prierias. Before the 7th of June[5] Luther had received a copy of Prierias' _Epitome of a Reply to Martin Luther_[6], which is the boldest and baldest possible assertion of the very theory of papal power which Luther had sought to demolish in his tract on the Papacy. In the preface to his reprint of the Epitome, Luther bids farewell to Rome: "Farewell, unhappy, hopeless, blasphemous Rome! The wrath of God hath come upon thee, as thou hast deserved! We have cared for Babylon, and she is not healed; let us, then, leave her, that she may be the habitation of dragons, spectres and witches, and true to her name of Babel, an everlasting confusion, a new pantheon of wickedness."[7] These words were written while the _Open Letter_ was in course of composition. The _Open Letter_ is, therefore, Luther's first publication after the time when he recognized that the breach between him and the papal church was complete, and likely to be permanent. Meanwhile, the opposing party had come to the same conclusion. The verdict of the pope upon Luther had been long delayed, but on the 15th of June, midway between the letter to Spalatin, above mentioned, and the completion of the _Open Letter_, Leo X signed the bull of excommunication, though it was not published in Germany until later. Thus the _Open Letter_ shows us the mind of Luther in the weeks when the permanent separation between him and Rome took place. It was also the time when he had the highest hopes from the promised support of the German knights[8], who formed the patriotic party in Germany and are included in the "nobility" to whom the Open Letter is addressed[9]. The first edition of 4000 copies came off the press of Melchior Lotther in Wittenberg before the 18th of August[10]. It is surmised[11] that the earlier portion[12] of the work was not contained in the original manuscript, but was added while it was in the printer's hands; perhaps it was added at the suggestion of Amsdorf. Less than a week later a second edition was in course of preparation[13]. This "enlarged and revised edition"[14] contained three passages not included in the first[15]. They are indicated in the notes to the present edition.