But such spectres were not visible to the _landgrave_ Philip. He was one of those princes, who, conscious of their own power and of love to their people, by whom in turn they are beloved, can look without fear even on republican affairs; a man in whom faith lived, and who without hesitation, therefore, suffered the spirit to live; and, acting thus, hoped, with youthful assurance, to calm down the violent combatants by his influence, if he could only get a personal interview with them. This appears best from his own words: "Dear Master Erhard," so he wrote some years after this period, to another of the zealots in the Eucharistic controversy, the Wuertemberg preacher, Erhard Schnepf, "I hear that you will not leave Blarer (preacher at Constance) unmolested in the confession, with which Luther and Philip (Melanchton) are still satisfied, but press upon him with sophistical language, and have made many persons anxious lest you would break down more than you build up, which I myself do not yet accuse you of, but should it happen, it will grieve many a pious man. Hence, it is my prayer, that you will proceed gently; be no disputer of words, but a promoter of faith, love and good works, and not, as the old proverb says, 'raise a spoon and break a bowl;' for you might have a zeal, when you have reached a sure understanding, to press it upon others and yet not reach the heart; and besides, to speak humanly, do great injury to the Gospel; as, for example, many pious people might be brought thereby to persecution and ruin, when the matter was not even worth talking about. Therefore proceed wisely, that you may not become a partaker of such blood and such destruction. It will not do to plunge thus into matters. The Apostles acted prudently; they did not thus reject people for trifling errors. I point this out to you, as one, who heartily desires you to treat of things, that will promote the cause of the Gospel, unity, and love also. Understand yourself, and do not go further than God allows. Let not the old Adam lord it over the new. You have not been preaching long. It is needful to exhort you. Adieu." Guided by such a noble endeavor to restore harmony among the Protestants, he pursued his mark with unwearied zeal, and obtained the consent of the Elector of Saxony, (who now required his learned men to attend the Conference), and at length that also of Luther and Melanchton, who, under date of July 8th, 1529, wrote to him as follows: "Since Your Princely Grace has received our two letters, and still insist upon our coming to Marburg, in the confident hope that concord will result from it, we wish with a cheerful and ready mind to contribute our part thereto, and by God's grace, if sound and well, will appear at Marburg on the day appointed. The Father of all mercy and unity grant His spirit that we may come together not in vain--for profit and not injury. Amen. Christ be Your Princely Grace's Governor and Guide!"