No one of sound mind is ignorant how destructive, pernicious, scandalous, and seductive to pious and simple minds these various errors are, how opposed they are to all charity and reverence for the holy Roman Church who is the mother of all the faithful and teacher of the faith; how destructive they are of the vigor of ecclesiastical discipline, namely obedience. This virtue is the font and origin of all virtues and without it anyone is readily convicted of being unfaithful.
Therefore we, in this above enumeration, important as it is, wish to proceed with great care as is proper, and to cut off the advance of this plague and cancerous disease so it will not spread any further in the Lord's field as harmful thornbushes. We have therefore held a careful inquiry, scrutiny, discussion, strict examination, and mature deliberation with each of the brothers, the eminent cardinals of the holy Roman Church, as well as the priors and ministers general of the religious orders, besides many other professors and masters skilled in sacred theology and in civil and canon law. We have found that these errors or theses are not Catholic, as mentioned above, and are not to be taught, as such; but rather are against the doctrine and tradition of the Catholic Church, and against the true interpretation of the sacred Scriptures received from the Church. Now Augustine maintained that her authority had to be accepted so completely that he stated he would not have believed the Gospel unless the authority of the Catholic Church had vouched for it. For, according to these errors, or any one or several of them, it clearly follows that the Church which is guided by the Holy Spirit is in error and has always erred. This is against what Christ at his ascension promised to his disciples (as is read in the holy Gospel of Matthew): "I will be with you to the consummation of the world"; it is against the determinations of the holy Fathers, or the express ordinances and canons of the councils and the supreme pontiffs. Failure to comply with these canons, according to the testimony of Cyprian, will be the fuel and cause of all heresy and schism.
With the advice and consent of these our venerable brothers, with mature deliberation on each and every one of the above theses, and by the authority of almighty God, the blessed Apostles Peter and Paul, and our own authority, we condemn, reprobate, and reject completely each of these theses or errors as either heretical, scandalous, false, offensive to pious ears or seductive of simple minds, and against Catholic truth. By listing them, we decree and declare that all the faithful of both sexes must regard them as condemned, reprobated, and rejected . . . We restrain all in the virtue of holy obedience and under the penalty of an automatic major excommunication....
Moreover, because the preceding errors and many others are contained in the books or writings of Martin Luther, we likewise condemn, reprobate, and reject completely the books and all the writings and sermons of the said Martin, whether in Latin or any other language, containing the said errors or any one of them; and we wish them to be regarded as utterly condemned, reprobated, and rejected. We forbid each and every one of the faithful of either sex, in virtue of holy obedience and under the above penalties to be incurred automatically, to read, assert, preach, praise, print, publish, or defend them. They will incur these penalties if they presume to uphold them in any way, personally or through another or others, directly or indirectly, tacitly or explicitly, publicly or occultly, either in their own homes or in other public or private places. Indeed immediately after the publication of this letter these works, wherever they may be, shall be sought out carefully by the ordinaries and others [ecclesiastics and regulars], and under each and every one of the above penalties shall be burned publicly and solemnly in the presence of the clerics and people.