The zealous but too ardent Carlstadt was still of one mind with Luther--the special bond of union between them being their attachment to the doctrine of grace, and their admiration of St. Augustine. Carlstadt, who was of an enthusiastic temperament, and possessed little prudence, was not a man to be arrested by the address and policy of a Miltitz. In opposition to the Obelisks of Dr. Eck, he had published theses in which he defended Luther and their common faith. Eck had replied, and Carlstadt, determined not to leave him the last word, had rejoined. The combat grew warm. Eck, eager to avail himself of so favourable an opportunity, had thrown down the gauntlet; and the impetuous Carlstadt had taken it up. God employed the passions of these two men to accomplish his designs. Though Luther had taken no part in these debates, he was destined to be the hero of the fight. There are men whom the force of circumstances always brings upon the scene. Leipsic was fixed upon, and hence the origin of the celebrated discussion which bears its name. Eck cared little about combating with Carlstadt, and even vanquishing him. Luther was the opponent whom he had in view. He accordingly employed every means to bring him into the field; and with this view published thirteen theses,[41] directed against the leading doctrines which had been espoused by the Reformer. The thirteenth was in these terms:--"We deny that the Roman Church was not superior to other Churches before the time of Pope Sylvester; and we acknowledge at all times, that he who has occupied the see of St. Peter and professed his faith,[42] is the successor of St. Peter and the vicar of Jesus Christ." Sylvester lived in the time of Constantine the Great; and hence Eck, in this thesis, denied that the primacy which Rome enjoyed was conferred on her by that emperor. [41] Defensio adversus Echii monomachiam. [42] L. Op. (L.) xvii, p. 242. Luther, whose consent to remain silent had not been given without reluctance, was strongly excited when he read these propositions. He saw that he was the person aimed at, and felt that he could not, with honour, evade the contest. "This man," said he, "names Carlstadt as his antagonist, and at the same time makes his assault upon me. But God reigns, and knows what result he designs to bring out of this tragedy.[43] The question is not between Dr. Eck and me. God's purpose will be accomplished. Thanks to Eck, this affair, which hitherto has been mere sport, will at length become serious, and give a fatal blow to the tyranny of Rome and the Roman Pontiff." [43] Sed Deus in medio deorum; ipse novit quid ex ea tragoeœdia deducere voluerit, (L. Ep. i, 230, 222.) [Sidenote: LUTHER'S MODERATION AND COURAGE.]