St. Vincent of Lerins and Staying in the One True Faith

Hans Urs von Balthasar noted in several of his writings the interesting and paradoxical nature of the Church as being ever old, yet ever new. In this way, the Catholic Church occupies a middle ground between those who are far too progressive and those far too traditional. In this spirit, I offer the following comments of St. Vincent of Lerins, who, perhaps ironically, was a chief proponent of two essential aspects of the Church seemingly at odds with each other. These two aspects are excellent examples of how the one Church is simultaneously ever old and ever new. In his Commonitorium, chapter 2, St. Vincent argues first for the aspect of the Church which is ever old.

I have therefore continually given the greatest pains and diligence to enquiring, from the greatest possible number of men outstanding in holiness and in doctrine, how I can secure a kind of fixed and, as it were, general and guiding principle for distinguishing the true Catholic Faith from the degraded falsehoods of heresy. And the answer that I receive is always to this effect; that if I wish, or indeed if any one wishes, to detect the deceits of heretics that arise and to avoid their snares and to keep healthy and sound in a healthy faith, we ought, with the Lord's help, to fortify our faith in a twofold manner, firstly, that is, by the authority of God's Law, then by the tradition of the Catholic Church.

Here, it may be, some one will ask, Since the canon of Scripture is complete, and is in itself abundantly sufficient, what need is there to join to it the interpretation of the Church? The answer is that because of the very depth of Scripture all men do not place one identical interpretation upon it. The statements of the same writer are explained by different men in different ways, so much so that it seems almost possible to extract from it as many opinions as there are men. Novatian expounds in one way, Sabellius in another, Donatus in another, Arius, Eunomius and Macedonius in another, Photinus, Apollinaris, and Priscillian in another, Jovinian, Pelagius and Caelestius in another, and latterly Nestorius in another. Therefore, because of the intricacies of error, which is so multiform, there is great need for the laying down of a rule for the exposition of Prophets and Apostles in accordance with the standard of the interpretation of the Church Catholic.

Now in the Catholic Church itself we take the greatest care to hold THAT WHICH HAS BEEN BELIEVED EVERYWHERE, ALWAYS, AND BY ALL.
That is truly and properly 'Catholic,' as is shown by the very force and meaning of the word, which comprehends everything almost universally. We shall hold to this rule if we follow universality, antiquity, and consent. We shall follow universality if we acknowledge 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 clear that our ancestors and fathers proclaimed; consent, if in antiquity itself we keep following the definitions and opinions of all, or certainly nearly all, bishops and doctors alike.

What then will the Catholic Christian do, if a small part of the Church has cut itself off from the communion of the universal Faith? The answer is sure. He will prefer the healthiness of the whole body to the morbid and corrupt limb.

But what if some novel contagion try to infect the whole Church, and not merely a tiny part of it? Then he will take care to cleave to antiquity, which cannot now be led astray by any deceit of novelty.

What if in antiquity itself two or three men, or it may be a city, or even a whole province be detected in error? Then he will take the greatest care to prefer the decrees of the ancient General Councils, if there are such, to the irresponsible ignorance of a few men. {source: Henry Bettenson, ed. Documents of the Christian Church, 2d ed., pp. 83-4}