On the same day that these theses were published, Luther sent a copy of them with a letter to the archbishop Albert, his "revered and gracious lord and shepherd in Christ." After a humble introduction, he begged him most earnestly to prevent the scandalizing and iniquitous harangues with which his agents hawked about their indulgences, and reminded him that he would have to give an account of the souls intrusted to his episcopal care. The next day he addressed himself to the people from the pulpit in a sermon he had to preach on the festival of All Saints. After exhorting them to seek their salvation in God and Christ alone, and to let the consecration by the Church become a real consecration of the heart, he went on to tell them plainly, with regard to indulgences, that he could only absolve from duties imposed by the Church, and that they dare not rely on him for more, nor delay on his account the duties of true repentance. Theologians before Luther, and with far more acuteness and penetration than he showed in his theses, had already assailed the whole system of indulgences. And, in regard to any idea on Luther's part of the effects of his theses extending widely in Germany, it may be noticed that not only were they composed in Latin, but that they dealt largely with scholastic expressions and ideas, which a layman would find it difficult to understand. Nevertheless the theses created a sensation which far surpassed Luther's expectations. In fourteen days, as he tells us, they ran through the whole of Germany, and were immediately translated and circulated in German. They found, indeed, the soil already prepared for them, through the indignation long since and generally aroused by the shameless doings they attacked; though till then nobody, as Luther expresses it, had liked to bell the cat, nobody had dared to expose himself to the blasphemous clamor of the indulgence-mongers and the monks who were in league with them, still less to the threatened charge of heresy. On the other hand, the very impunity with which this traffic in indulgences had been maintained throughout German Christendom had served to increase from day to day the audacity of its promoters. The task that Luther had now undertaken lay heavy upon his soul. He was sincerely anxious, while fighting for the truth, to remain at peace with his Church, and to serve her by the struggle. Pope Leo, on the contrary, as was consistent with his whole character, treated the matter at first very lightly, and, when it threatened to become dangerous, thought only how, by means of his papal power, to make the restless German monk harmless.