For the Antiquity and Universality of the Catholic Faith Against the Profane Novelties of All Heresies.
Chapter 1.
The Object of the Following Treatise.
[1.] I, Peregrinus, who am the least of all the servants of God, remembering the admonition of Scripture, Ask your fathers and they will tell you, your elders and they will declare unto you, and again, Bow down your ear to the words of the wise, and once more, My son, forget not these instructions, but let your heart keep my words: remembering these admonitions, I say, I, Peregrinus, am persuaded, that, the Lord helping me, it will be of no little use and certainly as regards my own feeble powers, it is most necessary, that I should put down in writing the things which I have truthfully received from the holy Fathers, since I shall then have ready at hand wherewith by constant reading to make amends for the weakness of my memory.
[2.] To this I am incited not only by regard to the fruit to be expected from my labour but also by the consideration of time and the opportuneness of place:
By the consideration of time — for seeing that time seizes upon all things human, we also in turn ought to snatch from it something which may profit us to eternal life, especially since a certain awful expectation of the approach of the divine judgment importunately demands increased earnestness in religion, while the subtle craftiness of new heretics calls for no ordinary care and attention.
I am incited also by the opportuneness of place, in that, avoiding the concourse and crowds of cities, I am dwelling in the seclusion of a Monastery, situated in a remote grange, where, I can follow without distraction the Psalmist’s admonition, Be still, and know that I am God.
Moreover, it suits well with my purpose in adopting this life; for, whereas I was at one time involved in the manifold and deplorable tempests of secular warfare, I have now at length, under Christ’s auspices, cast anchor in the harbour of religion, a harbour to all always most safe, in order that, having there been freed from the blasts of vanity and pride, and propitiating God by the sacrifice of Christian humility, I may be able to escape not only the shipwrecks of the present life, but also the flames of the world to come.
[3.] But now, in the Lord’s name, I will set about the object I have in view; that is to say, to record with the fidelity of a narrator rather than the presumption of an author, the things which our forefathers have handed down to us and committed to our keeping, yet observing this rule in what I write, that I shall by no means touch upon everything that might be said, but only upon what is necessary; nor yet in an ornate and exact style, but in simple and ordinary language, so that the most part may seem to be intimated, rather than set forth in detail. Let those cultivate elegance and exactness who are confident of their ability or are moved by a sense of duty. For me it will be enough to have provided a Commonitory (or Remembrancer) for myself, such as may aid my memory, or rather, provide against my forgetfulness: which same Commonitory however, I shall endeavor, the Lord helping me, to amend and make more complete little by little, day by day, by recalling to mind what I have learned. I mention this at the outset, that if by chance what I write should slip out of my possession and come into the hands of holy men, they may forbear to blame anything therein hastily, when they see that there is a promise that it will yet be amended and made more complete.
Chapter 2.
A General Rule for distinguishing the Truth of the Catholic Faith from the Falsehood of Heretical Pravity.
[4.] I have often then inquired earnestly and attentively of very many men eminent for sanctity and learning, how and by what sure and so to speak universal rule I may be able to distinguish the truth of Catholic faith from the falsehood of heretical pravity; and I have always, and in almost every instance, received an answer to this effect: That whether I or any one else should wish to detect the frauds and avoid the snares of heretics as they rise, and to continue sound and complete in the Catholic faith, we must, the Lord helping, fortify our own belief in two ways; first, by the authority of the Divine Law, and then, by the Tradition of the Catholic Church.
[5.] But here some one perhaps will ask, Since the canon of Scripture is complete, and sufficient of itself for everything, and more than sufficient, what need is there to join with it the authority of the Church’s interpretation? For this reason — because, owing to the depth of Holy Scripture, all do not accept it in one and the same sense, but one understands its words in one way, another in another; so that it seems to be capable of as many interpretations as there are interpreters. For Novatian expounds it one way, Sabellius another, Donatus another, Arius, Eunomius, Macedonius, another, Photinus, Apollinaris, Priscillian, another, Iovinian, Pelagius, Celestius, another, lastly, Nestorius another. Therefore, it is very necessary, on account of so great intricacies of such various error, that the rule for the right understanding of the prophets and apostles should be framed in accordance with the standard of Ecclesiastical and Catholic interpretation.
[6.] Moreover, in the Catholic Church itself, all possible care must be taken, that we hold that faith which has been believed everywhere, always, by all. For that is truly and in the strictest sense Catholic, which, as the name itself and the reason of the thing declare, comprehends all universally. This rule we shall observe if we follow universality, antiquity, consent. We shall follow universality if we confess that one faith to be true, which the whole Church throughout the world confesses; antiquity, if we in no wise depart from those interpretations which it is manifest were notoriously held by our holy ancestors and fathers; consent, in like manner, if in antiquity itself we adhere to the consentient definitions and determinations of all, or at the least of almost all priests and doctors.