He next announced and justified his act in a short treatise entitled 'Why the Books of the Pope and his disciples were burnt by Dr. Martin Luther.' 'I, Martin Luther,' he says, 'doctor of Holy Scripture, an Augustinian of Wittenberg, make known hereby to everyone, that by my wish, advice, and act, on Monday after St. Nicholas' day, in the year 1520, the books of the Pope of Rome, and of some of his disciples, were burnt. If anyone wonders, as I fully expect they will, and asks for what reason and by whose command I did it, let this be his answer.' Luther considers it his bounden duty, as a baptized Christian, a sworn doctor of Holy Scripture, and a daily preacher, to root out, on account of his office, all unchristian doctrines. The example of others, on whom the same duty devolved, but who shrank from doing as he did, would not deter him. 'I should not,' he says, 'be excused in my own sight; of that my conscience is assured, and my spirit, by God's grace, has been roused to the necessary courage.' He then proceeds to cite from the law-books thirty erroneous doctrines, in glorification of the Papacy, which deserved to be burnt. The sum total of this Canon law was as follows: 'The Pope is a God on earth, above all things, heavenly and earthly, spiritual and temporal, and everything is his, since no one durst say, What doest thou?' This, says Luther, is the abomination of desolation (St: Matth. xxiv. 15), or in other words Antichrist (2 Thess. ii. 4). Simultaneously with this, he set out in a longer and exhaustive work the 'ground and reason' of all his own articles which had been condemned by the bull. He takes his stand upon God's word in Scripture against the dogmas of the earthly God;--upon the revelation by God Himself, which, to everyone who studies it deeply and with devotion, will lighten his understanding, and make clear its substance and meaning. What though, as he is reminded, he is only a solitary, humble man, he is sure of this, that God's Word is with him. To Staupitz, who felt faint-hearted and desponding about the bull, Luther wrote, saying that, when burning it, he trembled at first and prayed; but now he felt more rejoiced than at any other act in all his life. He now released himself finally from the restraints of those monastic rules, with which, as we have remarked before, he had always tormented himself, besides performing the higher duties of his calling. He was freed now, as he wrote to his friend Lange, by the authority of the bull, from the commands of his Order and of the Pope, being now an excommunicated man. Of this he was glad; he retained merely the garb and lodging of a monk: he had more than enough of real duties to perform with his daily lectures and sermons, with his constant writings, educational, edifying, and polemical, and with his letters, discourses, and the assistance he was able to give his brethren.