1 Corinthians 11:19

Now, that which he subjoins to evil things, he of course confesses to be itself an evil; and all the greater, indeed, because he tells us that his belief of their schisms and dissensions was grounded on his knowledge that "there must be heresies also." For he shows us that it was owing to the prospect of the greater evil that he readily believed the existence of the lighter ones; and so far indeed was he from believing, in respect of evils (of such a kind), that heresies were good, that his object was to forewarn us that we ought not to be surprised at temptations of even a worse stamp, since (he said) they tended "to make manifest all such as were approved; " in other words, those whom they were unable to pervert.

It was indeed necessary that there should be heresies; and yet it does not follow from that necessity, that heresies are a good thing.

Now if there are no heresies at all but what those who refute them are supposed to have fabricated, then the apostle who predicted them must have been guilty of falsehood.

Now it is no matter of surprise if arguments are captiously taken from the writings of (the apostle) himself, inasmuch as there "must needs be heresies; " but these could not be, if the Scriptures were not capable of a false interpretation.

Now, since it was "needful that there should be heresies, in order that they which are approved might be made manifest; " since, however, these heresies would be unable to put on a bold front without some countenance from the Scriptures, it therefore is plain enough that the ancient Holy Writ has furnished them with sundry materials for their evil doctrine, which very materials indeed (so distorted) are refutable from the same Scriptures.

It is as if the apostle meant that the authors of heresies are not instantly rooted out by God, in order to make manifest those who are approved, that is, in order to make evident to what degree each one is a steadfast, faithful and …

Before all things, it is befitting that we should know both that He Himself and His ambassadors foretold that there must be numerous sects and heresies, which would break the unity of the sacred body; and that they admonished us to be on our guard with the greatest prudence, lest we should at any time fall into the snares and deceits of that adversary of ours, with whom God has willed that we should contend.

And Trypho said, "I believe, however, that many of those who say that they confess Jesus, and are called Christians, eat meats offered to idols, and declare that they are by no means injured in consequence." And I replied, "The fact that there are such men confessing themselves to be Christians, and admitting the crucified Jesus to be both Lord and Christ, yet not teaching His doctrines, but those of the spirits of error, causes us who are disciples of the true and pure doctrine of Jesus Christ, to be more faithful and stedfast in the hope announced by Him. For what things He predicted would take place in His name, these we do see being actually accomplished in our sight. For he said, 'Many shall come in My name, clothed outwardly in sheep's clothing, but inwardly they are ravening wolves.'" And, 'There shall be schisms and heresies.' And, 'Beware of false prophets, who shall come to you clothed outwardly in sheep's clothing, but inwardly they are ravening wolves.' And, 'Many false Christs and false apostles shall arise, and shall deceive many of the faithful.' There are, therefore, and there were many, my friends, who, coming forward in the name of Jesus, taught both to speak and act impious and blasphemous things; and these are called by us after the name of the men from whom each doctrine and opinion had its origin.

That it was foretold that heresies would arise. In the first epistle of Paul to the Corinthians: "Heresies must needs be, in order that they which are approved may be made manifest among you."

"For there must be also factions among you, that they which are approved may be made manifest among you." By "factions," here he means those which concern not the doctrines, but these present divisions. But even if he had spoken of the doctrinal heresies, not even thus did he give them any handle. For Christ Himself said, "it must needs be that occasions of stumbling come," not destroying the liberty of the will nor appointing any necessity and compulsion over man's life, but foretelling what would certainly ensue from the evil mind of men; which would take place, not because of his prediction, but because the incurably disposed are so minded. For not because he foretold them did these things happen: but because they were certainly about to happen, therefore he foretold them. Since, if the occasions of stumbling were of necessity and not of the mind of them that bring them in, it was superfluous His saying, "Woe to that man by whom the occasion cometh." But these things we discussed more at length when we were upon the passage itself; now we must proceed to what is before us. Now that he said these things of these factions relating to the tables, and that contention and division, he made manifest also from what follows. For having said, "I hear that there are divisions among you," he stopped not here, but signifying what divisions he means he goes on to say, "each one taketh before other his own supper;" and again, "What? have ye not houses to eat and to drink in? or despise ye the Church of God?" However, that of these he was speaking is evident. And if he call them divisions, marvel not. For, as I said, he wishes to touch them by the expression: whereas had they been divisions of doctrine, he would not have discoursed with them thus mildly. […]

Nor do I risk contradiction in saying that the very Scriptures were even arranged by the will of God in such a manner as to furnish materials for heretics, inasmuch as I read that "there must be heresies, which there cannot be without the Scriptures.

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.

Paul is not talking here about doctrinal error but about moral failures.

Secondly, he presents the credulity of his hearers when he says: And I partly believe it, i.e., as to some of you who were prone to contention, according to what was said above (1:11): "There is quarreling among you. What I mean is that each …

He speaks not of disagreements in dogmas, but of such divisions as, for example, regarding meals. What then does "there must be" mean? That, since you are human, it is possible and inevitable that not everyone walks rightly. For this reason I also believe it. …

For there must be also heresies among you.... This is a reason why he was ready to believe there might be something of truth in the report he had received of the divisions among them; for if there were heresies, false doctrines, and bad principles, among them, such as were subversive of the fundamentals of Christianity, as the denial of the resurrection of the dead, &c. it was no wonder that there were schisms and factions among them, since heresies generally issue in them.

For, adds he, there must be heresies also; not only quarrels, but factions, and perhaps such corrupt opinions as strike at the foundation of Christianity, and all sound religion. Note, No marvel there should be breaches of Christian love in the churches, when such offences will come as shall make shipwreck of faith and a good conscience.

There must be heresies - Divisions. Among you - In the ordinary course of things; and God permits them, that it may appear who among you are, and who are not, upright of heart.

For there must be - It is necessary (δεῖ dei); it is to he expected; there are reasons why there should be. What these reasons are he states in the close of the verse; compare Mat 18:7; 2Pe 2:1; 2Pe 2:

heresies--Not merely "schisms" or "divisions" (1Co 11:18), which are "recent dissensions of the congregation through differences of opinion" [AUGUSTINE, Con. 2.7, quoted by TRENCH, Greek Synonyms of the New Testament], but also "heresies," that is, "schisms which have now become inveterate"; 15:5 translate the same Greek.

quarantine:debris (2026-07-29) — starts-lowercase

There must be also heresies - Αἱρεσεις· Not a common consent of the members of the Church, either in the doctrines of the Gospel, or in the ceremonies of the Christian religion. Their difference in religious opinion led to a difference in their religious practice, and thus the Church of God, that should have been one body, was split into sects and parties. The divisions and the heresies sprung out of each other. I have spoken largely on the word heresy in Act 5:17 (note), to which place I beg leave to refer the reader.