Something I’m translating for one of my finals. [ ] indicate the addition of a word on my part for clarity.
Decree Against Heretics
Given at Verona in November, 1184 by Pope Lucius III (r.1181-1185)
For the purpose of abolishing the depravity of various heresies which have begun to sprout in many parts of the world in our present time, the Church must be aroused and wakeful so that, with the supporting power of Imperial strength, the impudence of the heretics may be shattered in the very enterprise of their fraud, and the resplendent truth of Catholic simplicity in the holy Church may reveal it cleansed from all imprecation of false dogma. Therefore, most dear sons of our illustrious Frederick [Barbarossa], Emperor of the Romans, Eternal Augustus, we, presently supported equally and with vigor by the communal council of our brothers and other patriarchs, archbishops, and many princes who have come from diverse parts of the world, rise against those heretics, whose assertion spreads many words of diverse falsities, by the sanction of this general decree, and we condemn by apostolic authority all heresy under whatever name it is known through the list of these decrees.
First, we therefore decree the Cathars, Patarini, Passagini, Josephini, Arnaldistae, and those who deceive themselves with a false name, the Humiliati, or the Poor of Lyon, to be subject to a perpetual anathema. And because some, denying His strength, as the Apostle says, claim for themselves the authority for preaching, since the same Apostle says, “How will they preach, unless they are sent?” All who are prohibited and not sent and presume to preach in public or in private, except those who received the responsibility from the apostolic see or the bishop of a particular place, and dare to think or to teach all things, whether about the sacrament of the body and blood of our Lord Jesus Christ, or baptism, or the remission of sins, or marriage, or other Church sacraments, other than the most holy Roman Church preaches and observes, the same Roman Church generally, either each bishop in their own diocese with the council of their clerics, or the clerics themselves, the see being vacant, with the council of a neighboring bishop, if appropriate, judges any and all of them to be heretics, we equally bind them in the chains of perpetual anathema. We also declare those who receive and defend them and likewise all who offer any protection or favor to the aforementioned heretics in order to foster the depravity of heresy in them, whether they be called “Consoled,” “Believers,” “Perfects,” or by any other superstitious names, to be subject to the same sentence.
Since it is well and truly a matter of driving out sins, let the [full] strictness of ecclesiastical discipline pass judgment on those who do not understand its power. If [the heretic] is a cleric, or colored by the cloth of any religious order, the prerogative of every ecclesiastical order is to be stripped from him, and thus similarly deprived of all office and ecclesiastical benefice, he to be turned over to the judgment of the secular arm to be punished by appropriate censure, unless immediately after the detection of error he hasten back to the unity of the Catholic faith of his own will, and agree to publically abjure his error, judged by the regional bishop, and furnish suitable satisfaction. However, a layperson who the private or public sin of the aforesaid pestilence stains, unless, as it has been said, having abjured the heresy and furnished satisfaction, he immediately take refuge in orthodox faith, is to be turned over to the judgment of the secular arm to receive the revenge due for the nature of his crime.
Those of the nobility who in truth are discovered by the suspicion of the Church alone, unless they demonstrate their innocence by suitable purgation as judged by their bishop according to the degree of suspicion and the quality of their person are subject to the same sentence. However, those who, after abjuring their error, or after they are made clean by the examination of their individual prelate, as we have said above, are caught to have fallen back into their abjured heresy, we declare should be turned over to the secular arm without any further hearing, having bestowed the goods of the condemned on the churches to which they were subject according to the just law.
Moreover, we decree the aforesaid excommunication, to which we wish all heretics to be subject, to be renewed by all patriarchs, archbishops, and bishops on particular feast days and as often as they hold solemn observances or on any other occasion, for the glory of God and the refutation of heretical perversity, and establish it by apostolic authority so that if any of episcopal rank be found negligent or idle in this, he is to be held suspended from episcopal dignity and affairs for three years.
To this, based on episcopal council and the suggestion of the Imperial head and his princes, we add that any archbishop or bishop should, either himself or by means of his archdeacon or other suitable honest persons, tour his parish in which heretics are rumored to reside, and there call three men of good repute, or more if it seems expedient, to swear that if any of them know of heretics in the whole region, or any celebrating in secret assemblies, or at variance with the common practice of the faith in life and habits, he will eagerly reveal them to the bishop or archdeacon. Let the bishop or archdeacon then call the accused into his presence, and unless they cleanse themselves of the charge presented [to them] to the satisfaction of the bishop or archdeacon, or if after showing purification they relapse into their prior perfidy, they are to be punished by a court of bishops. If there are any of those men of good repute who, rejecting the oath out of damnable superstition, do not wish to [so] swear, they are to be considered heretics based on this, and afflicted by the punishments which have been laid out.
We set forth the above so that counts, barons, rectors, consuls of cities and other places, according to the exhortation of archbishops and bishops, promise bodily by most solemnly taken oath that in all of the aforesaid they will quickly and efficiently aid the church against the heretics and their accomplices when it is required of them, and strive in good faith and according to their duty and ability to carry out both the Imperial and ecclesiastical statues concerning that which we have said. If they do not do so, let them be stripped of the honor which they hold and let them obtain none further, having been similarly bound in excommunication and their lands placed under ecclesiastical interdict. The city which attempts opposition to these established decrees or, contrary to the exhortation of their bishop, neglects to punish those resisting, shall lose the trade of [all] other cities and find itself deprived of the episcopal dignity.
Finally, all patrons of the heretics, similarly condemned to perpetual disgrace, we decree should be excluded from legal pleading and testimony, and all other public duties. If there are any who, exempt from the law of the diocesan jurisdiction, are subject to the power of the apostolic see alone, nonetheless in these things which are set up above against the heretics they are subject to the judgment of archbishops or bishops, and in this regard must yield to them, with no hindrance on the freedom of their privileges, as if they were sent from the apostolic see.
 PL 201.1297C-1300A
 2 Tim. 3,5
 Rom. 10,15
 lit. ut
 lit. obumbratione fucatus
 lit. considerationem
 lit. penitus
 lit. statuentes
 lit. circumeat
 lit. fama fuerit
 lit. testimonii
 lit. eorum
 lit. eis
 lit. exsecutioni mandare
 lit. id observare noluerunt
 lit. interdicto Ecclesiae supponendis