Monday, March 2, 2020

The Rule of Faith

Last week I wrote on Apostolic Tradition, you can read it here. I concluded with three related questions, So what is this Apostolic Tradition? What is it that the Apostles handed down orally? What was it they deposited in the Church?

Simply stated: They handed down The Faith. The early Church called it The Rule of Faith. The word rule (Latin regula, Gr. kanon) means a standard by which something can be tested, and the Rule of Faith (Latin: regula fidei) serves as the norm or measure of the faith, the authority or standard for the faith. What early believers called the Rule of Faith was later called the Creed.

Irenaeus (AD 130-202)+ explains the role of Apostolic Tradition and the Rule of Faith for the early church:

Demonstration of Apostolic Preaching
“3. Now, that we may not suffer ought of this kind [heresy], we must needs hold the rule of the faith without deviation, and do the commandments ...  Now this doing is produced by faith … And faith is produced by the truth ; for faith rests on things that truly are … Now faith occasions this for us; even as the Elders, the disciples of the Apostles, have handed down to us.”

The rest of this excellent book is devoted to expounding the faith that has been handed down from the Apostles. I highly recommend it.

Against Heresies Book I
Chapter 10
1. The Church, though dispersed throughout the whole world, even to the ends of the earth, has received from the apostles and their disciples this faith: [She believes] in one God, the Father Almighty, Maker of heaven, and earth, and the sea, and all things that are in them; and in one Christ Jesus, the Son of God, who became incarnate for our salvation; and in the Holy Spirit, who proclaimed through the prophets the dispensations of God, and the advents, and the birth from a virgin, and the passion, and the resurrection from the dead, and the ascension into heaven in the flesh of the beloved Christ Jesus, our Lord, and His [future] manifestation from heaven in the glory of the Father to gather all things in one, and to raise up anew all flesh of the whole human race, in order that to Christ Jesus, our Lord, and God, and Saviour, and King, according to the will of the invisible Father, every knee should bow, of things in heaven, and things in earth, and things under the earth, and that every tongue should confess to Him, and that He should execute just judgment towards all; that He may send spiritual wickednesses, and the angels who transgressed and became apostates, together with the ungodly, and unrighteous, and wicked, and profane among men, into everlasting fire; but may, in the exercise of His grace, confer immortality on the righteous, and holy, and those who have kept His commandments, and have persevered in His love, some from the beginning [of their Christian course], and others from [the date of] their repentance, and may surround them with everlasting glory.

2. As I have already observed, the Church, having received this preaching and this faith, although scattered throughout the whole world, yet, as if occupying but one house, carefully preserves it. She also believes these points [of doctrine] just as if she had but one soul, and one and the same heart, and she proclaims them, and teaches them, and hands them down, with perfect harmony, as if she possessed only one mouth. For, although the languages of the world are dissimilar, yet the import of the tradition is one and the same. For the Churches which have been planted in Germany do not believe or hand down anything different, nor do those in Spain, nor those in Gaul, nor those in the East, nor those in Egypt, nor those in Libya, nor those which have been established in the central regions of the world. But as the sun, that creature of God, is one and the same throughout the whole world, so also the preaching of the truth shines everywhere, and enlightens all men that are willing to come to a knowledge of the truth. Nor will any one of the rulers in the Churches, however highly gifted he may be in point of eloquence, teach doctrines different from these (for no one is greater than the Master); nor, on the other hand, will he who is deficient in power of expression inflict injury on the tradition. For the faith being ever one and the same, neither does one who is able at great length to discourse regarding it, make any addition to it, nor does one, who can say but little diminish it.

Against Heresies Book III
Chapter 1
1. We have learned from none others the plan of our salvation, than from those through whom the Gospel has come down to us, which they did at one time proclaim in public, and, at a later period, by the will of God, handed down to us in the Scriptures, to be the ground and pillar of our faith.

Chapter 2
2. But, again, when we refer them to that tradition which originates from the apostles, [and] which is preserved by means of the succession of presbyters in the Churches, they object to tradition…

Chapter 4
1. Since therefore we have such proofs, it is not necessary to seek the truth among others which it is easy to obtain from the Church; since the apostles, like a rich man [depositing his money] in a bank, lodged in her hands most copiously all things pertaining to the truth: so that every man, whosoever will, can draw from her the water of life. For she is the entrance to life; all others are thieves and robbers. On this account are we bound to avoid them, but to make choice of the thing pertaining to the Church with the utmost diligence, and to lay hold of the tradition of the truth. For how stands the case? Suppose there arise a dispute relative to some important question among us, should we not have recourse to the most ancient Churches with which the apostles held constant intercourse, and learn from them what is certain and clear in regard to the present question? For how should it be if the apostles themselves had not left us writings? Would it not be necessary, [in that case,] to follow the course of the tradition which they handed down to those to whom they did commit the Churches?

2. To which course many nations of those barbarians who believe in Christ do assent, having salvation written in their hearts by the Spirit, without paper or ink, and, carefully preserving the ancient tradition, believing in one God, the Creator of heaven and earth, and all things therein, by means of Christ Jesus, the Son of God; who, because of His surpassing love towards His creation, condescended to be born of the virgin, He Himself uniting man through Himself to God, and having suffered under Pontius Pilate, and rising again, and having been received up in splendour, shall come in glory, the Saviour of those who are saved, and the Judge of those who are judged, and sending into eternal fire those who transform the truth, and despise His Father and His advent. Those who, in the absence of written documents, have believed this faith, are barbarians, so far as regards our language; but as regards doctrine, manner, and tenor of life, they are, because of faith, very wise indeed; and they do please God, ordering their conversation in all righteousness, chastity, and wisdom.


Irenaeus is very clear: “the apostles, like a rich man [depositing his money] in a bank, lodged in her hands most copiously all things pertaining to the truth.” They gave the Church their writings, the Scriptures, but they also handed down The Faith, what they called in Irenaeus’ day, The Rule of Faith. This is the Apostolic Tradition. This is what the Apostles handed down orally. This is very important. Later I plan to explain the relationship of the Rule of Faith to the Scriptures and to statements of faith today.

Next Monday: Origen


+ Irenaeus was the bishop of Lugdunum (now Lyon in the south of France). He had seen and heard the preaching of Polycarp, who was a disciple of the Apostle John. His best-known work is Against Heresies, or On the Detection and Overthrow of the So-Called Gnosis (Ancient Greek : Ἔλεγχος καὶ ἀνατροπὴ τῆς ψευδωνύμου γνώσεως), sometimes referred to by its Latin title Adversus Haereses. It was written in AD 180.

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