Melanchthon, who was forever changing and improving, naturally could not leave the Apology as it read in the first edition. This applies to both the German and the Latin text. He was thinking of the Latin octavo edition when he wrote to Brenz, June 7, 1531: "The Apology is now being printed, and I am at pains to make some points in the article of Justification clearer. It is an extremely great matter, in which we must proceed carefully that Christ's honor may be magnified." (2, 504.) The same edition he had in mind when he wrote to Myconius, June 14, 1531: "My Apology is now in press, and I am endeavoring to present the article of Justification even more clearly; for there are some things in the solution of the arguments which are not satisfactory to me." (506.) Accordingly, this octavo edition, of which Melanchthon was able to send a copy to Margrave George on September 14, revealed important alterations: partly improvements, partly expansions, partly deletions. The changes in the 10th Article, already referred to, especially the omission of the quotation from Theophylact, attracted most attention. The succeeding Latin editions likewise revealed minor changes. The Apology accompanying the Altered Augsburg Confession of 1540, was designated by Melanchthon himself as "_diligenter recognita,_ diligently revised." (_C. R._ 26, 357. 419.) Concerning the German Apology, Melanchthon wrote to Camerarius on January 1, 1533: "I have more carefully treated the German Apology and the article of Justification, and would ask you to examine it. If you have seen my Romans [Commentary on the Epistle to the Romans], you will be able to notice how exactly and methodically I am endeavoring to explain this matter. I also hope that intelligent men will approve it. For I have done this in order to explain necessary matters and to cut off all manner of questions, partly false, partly useless." (_C. R._ 2, 624.) About the same time he wrote to Spalatin: "Two articles I have recast entirely: Of Original Sin and Of Righteousness. I ask you to examine them, and hope that they will profit pious consciences. For in my humble opinion I have most clearly presented the doctrine of Righteousness and ask you to write me your opinion." (625.) Kolde says of this second revision of the German text of 1533: "This edition, which Melanchthon described as 'diligently amended,' is much sharper in its tone against the Romanists than the first and reveals quite extensive changes. Indeed, entire articles have been remodeled, such as those Of Justification and Good Works, Of Repentance. Of the Mass, and also the statements on Christian perfection." (41.) These alterations in the Latin and German texts of the Apology, however, do not involve changes in doctrine, at least not in the same degree as in the case of the Augustana Variata of 1540. Self-evidently, it was the text of the first edition of the German as well as the Latin Apology that was embodied in the Book of Concord.