not consent to sacrifice one jot or one tittle of the Augsburg Confession, nor could he assign to it an isolated position, even though Zwingli and his associates readily adopted it, with the single exception of Article X. Nor did his heart or his conscience allow him to ignore the other Lutheran Symbols. The _Augsburg Confession_ undoubtedly contained the pure truth of the Gospel, without any admixture of errors; but, owing to the circumstances and the times in which it originated, when it was the great object of Luther and his associates to justify their course in withdrawing from antichristian Rome, it confined itself to those principles which were then specially debated. Hence Calvin, who differed so widely on some points from the fully developed Lutheran creed, readily adopted and subscribed it at Strasburg.—The _Apology_, or Vindication of the Augsburg Confession, set forth, among others, the cardinal doctrine of the Lutheran faith, namely, Justification by faith alone, with extraordinary power and purity. Its full, lucid, and strictly scriptural character has never been successfully controverted. For this very reason the Apology was rejected by Papists, as it now is practically by Rationalists and others who depend on human merit, and are unwilling to give all honor to the Saviour alone.—The _Smalcald Articles_, which Luther prepared in order to set forth the points on which no Protestant or Bible Christian could make any concession to Popery, are also offensive to Papists, to Rationalists, and to the unbelieving and impenitent generally, as they contain the pure evangelical truth, which humbles man, while it exalts God.—_The Two Catechisms (the Large and the Small)_ furnish materials for popular instruction in revealed truth, which have never been equalled by other manuals, in their adaptation to the object, their fulness, and their purity. Hence, a friend of divine truth, like Arndt, who took so deep an interest in the religious education of the young, could not do otherwise than regard them as of inestimable value. An enemy of the truth would naturally disavow them.—The _Formula of Concord_—the last of the series of Lutheran Confessions of Faith, and the one which Arndt appears to have prized most highly—was intended, as we have shown above, to determine various important points involved in the controversies which had arisen in the bosom of the Lutheran Church before or at the time when he was born. The very circumstance that this Symbol was demanded by the exigencies of the Church, demonstrates that the Augsburg Confession was _not originally designed to be a full and complete confession of faith_, but only a statement of points discussed during the infancy of the Reformation. While it excludes every error which might dishonor God, and confirm the impenitent sinner in his evil course, it completes the previous Symbols, and forms with them an undivided and harmonious whole, exhibiting with