Early Church Fathers Quotes on the Church and Heresies

Ignatius

I therefore, yet not I, but the love of Jesus Christ, entreat you that ye use Christian nourishment only, and abstain from herbage of a different kind; I mean heresy. For those [that are given to this] mix up Jesus Christ with their own poison, speaking things which are unworthy of credit, like those who administer a deadly drug in sweet wine, which he who is ignorant of does greedily take, with a fatal pleasure leading to his own death. – The Epistle of Ignatius to the Trallians

I therefore, yet not I, out the love of Jesus Christ, “entreat you that ye all speak the same thing, and that there be no divisions among you; but that ye be perfectly joined together in the same mind, and in the same judgment.” For there are some vain talkers and deceivers, not Christians, but Christ-betrayers, bearing about the name of Christ in deceit, and “corrupting the word” of the Gospel; while they intermix the poison of their deceit with their persuasive talk, as if they mingled aconite with sweet wine, that so he who drinks, being deceived in his taste by the very great sweetness of the draught, may incautiously meet with his death. One of the ancients gives us this advice, “Let no man be called good who mixes good with evil.” – – The Epistle of Ignatius to the Trallians

Let no man deceive himself. Both the things which are in heaven, and the glorious angels, and rulers, both visible and invisible, if they believe not in the blood of Christ, shall, in consequence, incur condemnation. “He that is able to receive it, let him receive it.” Let not [high] place puff any one up: for that which is worth all is faith and love, to which nothing is to be preferred. But consider those who are of a different opinion with respect to the grace of Christ which has come unto us, how opposed they are to the will of God. They have no regard for love; no care for the widow, or the orphan, or the oppressed; of the bond, or of the free; of the hungry, or of the thirsty. – The Epistle of Ignatius to the Smyrnaeans 

They abstain from the Eucharist and from prayer, because they confess not the Eucharist to be the flesh of our Saviour Jesus Christ, which suffered for our sins, and which the Father, of His goodness, raised up again. Those, therefore, who speak against this gift of God, incur death in the midst of their disputes. But it were better for them to treat it with respect, that they also might rise again. It is fitting, therefore, that ye should keep aloof from such persons, and not to speak of them either in private or in public, but to give heed to the prophets, and above all, to the Gospel, in which the passion [of Christ] has been revealed to us, and the resurrection has been fully proved. But avoid all divisions, as the beginning of evils. – The Epistle of Ignatius to the Smyrnaeans 

Justin Martyr

Yet they style themselves Christians, just as certain among the Gentiles inscribe the name of God upon the works of their own hands, and partake in nefarious and impious rites.) Some are called Marcians, and some Valentinians, and some Basilidians, and some Saturnilians, and others by other names; each called after the originator of the individual opinion, just as each one of those who consider themselves philosophers, as I said before, thinks he must bear the name of the philosophy which he follows, from the name of the father of the particular doctrine. – Dialogue with Trypho

Irenaeus

Many offshoots of numerous heresies have already been formed from those heretics we have described. This arises from the fact that numbers of them-indeed, we may say all-desire themselves to be teachers, and to break off from the particular heresy in which they have been involved. Forming one set of doctrines out of a totally different system of opinions, and then again others from others, they insist upon teaching something new, declaring themselves the inventors of any sort of opinion which they may have been able to call into existence. – Against Heresies, Book I

Wherefore it is incumbent to obey the presbyters who are in the Church,-those who, as I have shown, possess the succession from the apostles; those who, together with the succession of the episcopate, have received the certain gift of truth, according to the good pleasure of the Father. But [it is also incumbent] to hold in suspicion others who depart from the primitive succession, and assemble themselves together in any place whatsoever, [looking upon them] either as heretics of perverse minds, or as schismatics puffed up and self-pleasing, or again as hypocrites, acting thus for the sake of lucre and vainglory. For all these have fallen from the truth. And the heretics, indeed, who bring strange fire to the altar of God-namely, strange doctrines-shall be burned up by the fire from heaven, as were Nadab and Abiud. But such as rise up in opposition to the truth, and exhort others against the Church of God, [shall] remain among those in hell (apud inferos), being swallowed up by an earthquake, even as those who were with Chore, Dathan, and Abiron. But those who cleave asunder, and separate the unity of the Church, [shall] receive from God the same punishment as Jeroboam did. Those, however, who are believed to be presbyters by many, but serve their own lusts, and, do not place the fear of God supreme in their hearts, but conduct themselves with contempt towards others, and are puffed up with the pride of holding the chief seat, and work evil deeds in secret, – Against Heresies, Book IV

From all such persons, therefore, it behooves us to keep aloof, but to adhere to those who, as I have already observed, do hold the doctrine of the apostles, and who, together with the order of priesthood (presbyterii ordine), display sound speech and blameless conduct for the confirmation and correction of others.- Against Heresies, Book IV

Now all these [heretics] are of much later date than the bishops to whom the apostles committed the Churches.

Clement of Alexandria

Further, it is said that it is on account of “those that are approved that heresies exist.” [The apostle] calls “approved,” either those who in reaching faith apply to the teaching of the Lord with some discrimination (as those are called skilful money-changers, who distinguish the spurious coin from the genuine by the false stamp), or those who have already become approved both in life and knowledge. For this reason, then, we require greater attention and consideration in order to investigate how precisely we ought to live, and what is the true piety. For it is plain that, from the very reason that truth is difficult and arduous of attainment, questions arise from which spring the heresies, savouring of self-love and vanity, of those who have not learned or apprehended truly, but only caught up a mere conceit of knowledge. With the greater care, therefore, are we to examine the real truth, which alone has for its object the true God. And the toil is followed by sweet discovery and reminiscence. On account of the heresies, therefore, the toil of discovery must be undertaken; but we must not at all abandon [the truth]. For, on fruit being set before us, some real and ripe, and some made of wax, as like the real as possible, we are not to abstain from both on account of the resemblance. But by the exercise of the apprehension of contemplation, and by reasoning of the most decisive character, we must distinguish the true from the seeming. – The Stromata, or Miscellanies — Book VII

And again, those also are likewise unclean that part the hoof, but do not ruminate. For these point out the heretics, who indeed go upon the name of the Father and the Son, but are incapable of triturating and grinding down the clear declaration of the oracles, and who, besides, perform the works of righteousness coarsely and not with precision, if they perform them at all. To such the Lord says, “Why will ye call me Lord, Lord, and do not the things which I say?” And those that neither part the hoof nor chew the cud are entirely unclean. – The Stromata, or Miscellanies — Book VII

Tertullian

Some men prefer wondering at heresies, however, which bring with them eternal death and the heat of a stronger fire, for possessing this power, instead of avoiding their power when they have the means of escape: but heresies would have no power, if (men) would cease to wonder that they have such power. For it either happens that, while men wonder, they fall into a snare, or, because they are ensnared, they cherish their surprise, as if heresies were so powerful because of some truth which belonged to them. It would no doubt be a wonderful thing that evil should have any force of its own, were it not that heresies are strong in those persons who are not strong in faith. – Prescription Against Heretics

How comes it to pass, (they ask), that this woman or that man, who were the most faithful, the most prudent, and the most approved in the church, have gone over to the other side? Who that asks such a question does not in fact reply to it himself, to the effect that men whom heresies have been able to pervert ought never to have been esteemed prudent, or faithful, or approved? This again is, I suppose, an extraordinary thing, that one who has been approved should afterwards fall back? – Prescription Against Heretics

For to the Son of God alone was it reserved to persevere to the last without sin. But what if a bishop, if a deacon, if a widow, if a virgin, if a doctor, if even a martyr, have fallen from the rule (of faith), will heresies on that account appear to possess the truth? Do we prove the faith by the persons, or the persons by the faith? – Prescription Against Heretics

But let us rather be mindful of the sayings of the Lord, and of the letters of the apostles;  for they have both told us beforehand that there shall be heresies, and have given us, in anticipation, warnings to avoid them; and inasmuch as we are not alarmed because they exist, so we ought not to wonder that they are capable of doing that, on account of which they must be shunned. The Lord teaches us that many “ravening wolves shall come in sheep’s clothing.” Now, what are these sheep’s clothing’s, but the external surface of the Christian profession? Who are the ravening wolves but those deceitful senses and spirits which are lurking within to waste the flock of Christ? Who are the false prophets but deceptive predictors of the future? Who are the false apostles but the preachers of a spurious gospel? Who also are the Antichrists, both now and evermore, but the men who rebel against Christ? Heresies, at the present time, will no less rend the church by their perversion of doctrine, than will Antichrist persecute her at that day by the cruelty of his attacks, except that persecution makes even martyrs, (but) heresy only apostates. And therefore “heresies must needs be in order that they which are approved might be made manifest, both those who remained stedfast under persecution, and those who did not wander out of their way into heresy. For the apostle does not mean that those persons should be deemed approved who exchange their creed for heresy – Prescription Against Heretics

Of these the practical effects are false doctrines, called in Greek heresies, a word used in the sense of that choice which a man makes when he either teaches them (to others) or takes up with them (for himself). For this reason it is that he calls the heretic condemned, because he has himself chosen that for which he is condemned. – Prescription Against Heretics

But here is, as we have said, the same madness, in their allowing indeed that the apostles were ignorant of nothing, and preached not any (doctrines) which contradicted one another, but at the same time insisting that they did not reveal all to all men, for that they proclaimed some openly and to all the world, whilst they disclosed others (only) in secret and to a few, because Paul addressed even this expression to Timothy: “O Timothy, guard that which is entrusted to thee;” and again: “That good thing which was committed unto thee keep.” What is this deposit? Is it so secret as to be supposed to characterize a new doctrine? or is it a part of that charge of which he says, “This charge I commit unto thee, son Timothy?” and also of that precept of which he says, “I charge thee in the sight of God, who quickeneth all things, and before Jesus Christ who witnessed a good confession under Pontius Pilate, that thou keep this commandment?” Now, what is (this) commandment and what is (this) charge? From the preceding and the succeeding contexts, it will be manifest that there is no mysterious hint darkly suggested in this expression about (some) far-fetched doctrine, but that a warning is rather given against receiving any other (doctrine) than that which Timothy had heard from himself, as I take it publicly: “Before many witnesess” is his phrase. Now, if they refuse to allow that the church is meant by these “many witnesses,” it matters nothing, since nothing could have been secret which was produced “before many witnesses.” – Prescription Against Heretics

Since, therefore, it is incredible that the apostles were either ignorant of the whole scope of the message which they had to declare, or failed to make known to all men the entire rule of faith, let us see whether, while the apostles proclaimed it, perhaps, simply and fully, the churches, through their own fault, set it forth otherwise than the apostles had done. All these suggestions of distrust you may find put forward by the heretics. – Prescription Against Heretics

If it be true, then, that those heresies, which in the apostolic times were in a rude form, are now found to be the same, only in a much more polished shape.

I must not omit an account of the conduct also of the heretics–how frivolous it is, how worldly, how merely human, without seriousness, without authority, without discipline, as suits their creed. To begin with, it is doubtful who is a catechumen, and who a believer; they have all access alike, they hear alike, they pray alike–even heathens, – Prescription Against Heretics

They will, besides, add a good deal respecting the high authority of each doctor of heresy,–how that these mightily strengthened belief in their own doctrine; how that they raised the dead, restored the sick, foretold the future, that so they might deservedly be regarded as apostles. As if this caution were not also in the written record: that many should come who were to work even the greatest miracles, in defence of the deceit of their corrupt preaching. – Prescription Against Heretics

WE are accustomed, for the purpose of shortening argument, to lay down the rule against heretics of the lateness of their date. For in as far as by our rule, priority is given to the truth, which also foretold that there would be heresies, in so far must all later opinions be prejudged as heresies, being such as were, by the more ancient rule of truth, predicted as (one day) to happen. – AGAINST HERMOGENES.

Hegesippus

Therefore was the Church called a virgin, for she was not as yet corrupted by worthless teaching. Thebulis it was who, displeased because he was not made bishop, first began to corrupt her by stealth. He too was connected with the seven sects which existed among the people, like Simon, from whom come the Simoniani; and Cleobius, from whom come the Cleobiani; and Doritheus, from whom come the Dorithiani; and Gorthaeus, from whom come the Gortheani; Masbothaeus, from whom come the Masbothaei. From these men also come the Menandrianists, and the Marcionists, and the Carpocratians, and the Valentinians, and the Basilidians, and the Saturnilians. Each of these leaders in his own private and distinct capacity brought in his own private opinion. From these have come false Christs, false prophets, false apostles-men who have split up the one Church into parts through their corrupting doctrines, uttered in disparagement of God and of His Christ – Fragments of Hegesippus

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