But the fruits of the Heidelberg discussion were not confined to the Palatinate. These bold friends of the truth soon became luminaries in the Church. They all occupied eminent stations, and took part in the numerous discussions, to which the Reformation gave rise. Strasburg, and at a later period England, were indebted to the labours of Bucer, for a purer knowledge of the truth. Snepf taught first at Marburg, then at Stutgard, Tubingen, and Jena. Brentz, after teaching at Heidelberg, long continued to labour at Halle, in Swabia, and at Tubingen. These three individuals will again come before us. This discussion caused Luther himself to advance. He grew daily in the knowledge of the truth. "I am one of those," said he, "who have made progress by writing and by instructing others; and not one of those, who, from nothing, become all at once great and learned doctors." He was delighted at seeing the avidity with which youth in schools received the growing truth; and this consoled him when he saw how deeply the old doctors were rooted in their opinions. "I have the glorious hope," said he, "that, in like manner as Christ, when rejected by the Jews, went to the Gentiles, we will now see true theology, though rejected by these old men of vain and fantastical opinions, welcomed by the rising generation."[472] [472] Luth. Ep. i, p. 112. The Chapter being closed, Luther thought of returning to Wittemberg. The Count Palatine gave him a letter to the Elector, in which he said that "Luther had displayed so much ability in the discussion as to reflect great glory on the university of Wittemberg." He was not permitted to return on foot.[473] The Augustins of Nuremberg conducted him as far as Wurzburg, and from thence he proceeded to Erfurt with the friars belonging to it. As soon as he arrived he called on his old master Jodocus. The venerable professor, who had been much concerned and shocked at the career which his pupil had followed, was accustomed to put a theta (θ) before all Luther's sentences,--that being the letter which the Greeks used to express condemnation.[474] He had written to the young doctor, censuring his conduct, and he was anxious to answer by word of mouth. Not having been received, he wrote Jodocus:--"The whole university, with the exception of a single licentiate, thinks as I do. Nay, more; the prince, the bishop, several other prelates, and all our enlightened citizens, declare, with one voice, that hitherto they have neither known nor understood Jesus Christ and his gospel. I am ready to receive your correction, and though it should be harsh I will think it pleasant. Unbosom your heart then without fear, disburden yourself of your anger. I have no wish, I am not able to be angry with you. God and my conscience bear witness."[475] [473] "Veni autem curru qui ieram pedester." (Ibid., p. 110.) I went on foot, but returned in a chariot.