Every Line Drawn Is Another Division

There is a pattern in church history that is easy to miss because we usually study the splits one at a time. Put them side by side and the same thing happens every time. Scripture says two things that sit in tension. A teacher, a council, or a movement decides the tension is intolerable, draws a hard line on one side, and requires everyone to stand on it. And the church loses a body. It happened in 431, in 451, in 1054, in 1517, and it has been happening faster ever since. The curve is not flat. It bends upward, and it bends hardest in the last two hundred years.

The pattern was already visible in Corinth

Paul saw the first version of it inside a single congregation, within twenty-five years of the resurrection. "Now I beseech you, brethren, by the name of our Lord Jesus Christ, 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... Now this I say, that every one of you saith, I am of Paul; and I of Apollos; and I of Cephas; and I of Christ. Is Christ divided?" (1 Corinthians 1:10–13). Notice what the Corinthians were dividing over: not heresy, but emphasis. Paul and Apollos and Peter all preached the same Christ. The people took the teachers' differing accents, drew lines around them, and called the lines the gospel. Paul's diagnosis is blunt: "are ye not carnal, and walk as men?" (1 Corinthians 3:3).

That same night before the cross, Jesus had prayed for exactly the opposite outcome, and he prayed it for us by name: "Neither pray I for these alone, but for them also which shall believe on me through their word; That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me" (John 17:20–21). The unity is not decorative. It is the evidence he chose to give the world.

Where Scripture holds two truths at once

Here is the thing that makes the pattern so persistent. On the largest questions, Scripture does not resolve the tension for us. It states both sides, plainly, and leaves them standing. Five of them account for most of the church's divisions.

Every one of the pairs above became a schism. Not because one side read the Bible and the other did not, but because each side took one of the two sentences, built a mechanism to explain it, and then required the mechanism as the test of fellowship. The mechanism was human. The sentence was God's. The line was drawn around the mechanism.

The record: one line, one body, every time

Ephesus, 431: the natures of Christ, first line. The Antioch school guarded the distinction of Christ's two natures; the Alexandria school guarded the unity of his person. Both were guarding something in John 1:14BH. The council condemned Nestorius; the Antioch bishops held a rival council and deposed Cyril in turn. Inside the empire a Formula of Union (433) patched the parties together. Beyond the frontier it did not hold. Philip Schaff, whose History of the Christian Church is public domain, records the result:

That church, the Church of the East, still exists. And in 1994 Rome and the Assyrian Church of the East signed a Common Christological Declaration in which both "recognize the legitimacy and rightness of these expressions of the same faith," and grant that the old divisions "were due in large part to misunderstandings." Fifteen hundred and sixty-three years, over a line both sides now say was largely words.

Origen, long before any of these councils sat, had already said what the necessary humility sounds like. The mind of Christ is not a possession one argues from; it is a grace one asks for:

Chalcedon, 451: the natures of Christ, second line. Twenty years later the same question drew a second line from the other direction. Chalcedon confessed Christ "in two natures"; the churches of Egypt, Ethiopia, Armenia, and Syria held to Cyril's own phrase, "of two natures," united into one, and heard the new wording as a step back toward Nestorius. They left. The Oriental Orthodox have stood apart since, and the Ethiopian church, one of the oldest Christian nations on earth, has been outside the fellowship of both Rome and Constantinople for nearly sixteen centuries over a preposition.

1054: the procession of the Spirit. The Nicene Creed as confessed in 381 said the Spirit "proceedeth from the Father," John 15:26BH word for word. The Latin West added filioque, "and the Son," to say what John 15:26 also says, that the Son sends him. The East objected to a change in the shared creed made by one side alone, and to the claim of Roman authority that stood behind it. Each side was holding half of one verse. The mutual excommunications of 1054 split the church of Nicaea into two, and they were not lifted until 1965.

1517 and after: grace, works, election, and the will. The Reformation drew its line on justification, and it was a line that needed drawing; the indulgence trade was a scandal by any reading of Scripture. But watch what happened next. Within a generation the Reformers had divided from each other over the Supper (Luther and Zwingli, Marburg 1529). Within a century the Reformed had divided over election and free will (Dort 1618–19, against the Arminians), which is Philippians 2:12BH–13 pulled apart into two camps. The Anabaptists were cast out by everyone over baptism. Then Methodism from Anglicanism, then the Holiness bodies from Methodism, then Pentecostalism from Holiness, and within Pentecostalism a split over the very name of God in baptism. Each new body took a real sentence of Scripture, drew a hard line at it, and went out the door.

The curve

Church statisticians at the Center for the Study of Global Christianity (Gordon-Conwell) publish an annual table, Status of Global Christianity. Its line 31 counts denominations and rites worldwide:

Handle the number honestly. The table counts denominations by country, so a single worldwide body appears many times, and the definition of "denomination" is the compilers', not Scripture's. The exact figure is arguable. The shape is not. From the one church of Pentecost to a few bodies by 1054, to a few dozen by 1600, to two thousand by 1900, and then a twenty-five-fold increase in the century and a quarter since. The church is not merely divided; it is dividing faster. The five hundred years since 1517 produced more separate bodies than the fifteen hundred before them, and the last two hundred produced most of those.

The one line Paul drew, and where he put it

Paul was not against every line. He drew one, told the Corinthians exactly where it was, and made it the whole of his preaching: "For I determined not to know any thing among you, save Jesus Christ, and him crucified" (1 Corinthians 2:2).

He said that to a church already dividing over teachers, which is why it is worth quoting here. Not to a settled congregation with nothing to argue about, but to the one that had started saying I am of Paul and I am of Apollos. His answer to a splitting church was not a longer list. It was a shorter one. That short list has a name. It is the proclamation, four clauses Paul says he received before he wrote a word of his own, and every division this page traces is a split over the teaching that came after it, never over the proclamation.

And then, four verses later, he does the thing nobody expects of a man who has just said he knows nothing but Christ crucified. He goes deep.

"Howbeit we speak wisdom among them that are perfect: yet not the wisdom of this world" (1 Corinthians 2:6). "But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory" (1 Corinthians 2:7). "For the Spirit searcheth all things, yea, the deep things of God" (1 Corinthians 2:10). And at the end of it, without blinking: "we have the mind of Christ" (1 Corinthians 2:16).

So the shorter list is not anti-intellectual, and it is not a ban on thinking hard. Paul lays the floor and then goes further into the mystery in the same breath than most of what has been written since. The two are not in tension; the first is what makes the second safe.

But watch what he does not do with the depth. He never turns it into a new boundary. He does not say the hidden wisdom is the test of who is in. He says it is taught by the Spirit, "not in the words which man's wisdom teacheth" (1 Corinthians 2:13), and that the natural man cannot receive it "because they are spiritually discerned" (1 Corinthians 2:14), which puts it entirely outside anyone's power to administer as a gate. You cannot excommunicate a man for failing an exam only the Spirit can set.

That is the pattern worth copying. Go as deep as you can. Hold the floor where Paul put it. And never let the depth you reached become the new edge of the church.

The men who drew the lines could not stay on one side of them

The usual way to tell this story is camp against camp. That is not what the record shows when you read the men themselves rather than the summaries of them. Again and again the greatest voices on a question come down on both sides of it, and often in the same book.

Tertullian, in a single sentence. Arguing against Marcion he writes that Christ "made it His own body, by saying, 'This is my body,' that is, the figure of my body" (Against Marcion IV.40). Made it His own body, and figure of my body, in one breath. Both sides of the Table quote half of that line and neither quotes the whole of it.

Chrysostom, who is cited constantly for real presence, also writes "this is a figure of that [sacrifice] and this remembrance of that... we perform a remembrance of a Sacrifice" (Homilies on Hebrews XVII).

Barnes, on Hebrews 6, within a page of himself. He concludes the passage "refers to true Christians," and then argues that the falling away is only supposed, that "the apostle does not say that any true Christian ever had fallen away." Real Christians, unreal danger. He could not make himself say either half alone.

Calvin, against the tradition that quotes him. On the verse the whole argument turns on he says "here we must advert to a very common error in the interpretation of this passage. Many persons restrict the word gift to faith alone... His meaning is, not that faith is the gift of God, but that salvation is given to us by God." Not because he is softening; he thought the narrower reading weakened Paul, "who excludes man and his utmost ability, not only from the commencement, but throughout."

Augustine, against the machine built on him. "God no doubt wishes all men to be saved and to come into the knowledge of the truth; but yet not so as to take away from them free will, for the good or the evil use of which they may be most righteously judged" (On the Spirit and the Letter 58).

Gill, refusing the harshest use of his own text. Reading Hebrews 6, the strictest Calvinist on our shelf pauses to reject the Novatian reading, that those who fall after baptism are "to be cut off from the communion of the church, and never more to be restored unto it." He calls that "contrary to the promises of God to returning backsliders, and contrary to facts, as well as to the directions of Christ, and his apostles, to receive and restore such persons," and says it "tends to set aside the intercession of Christ for fallen believers, and to plunge them into despair." That is not Gill breaking with his system; a Calvinist expects the elect to sin and be restored. It is something better: a man who reads a severe passage and refuses to let it be made crueller than it is.

Bellarmine, arriving at our conclusion from the far side. Rome's greatest controversialist takes Ezekiel 18:24BH as evidence against perseverance: "When the just man turneth himself away from his justice, and doth iniquity, he shall die in it — Scripture teaching, in express words, the contrary of the promise that God will not permit the just to fall" (On Justification III.14). He is defending his own tradition there, not breaking from it, and that is the point. A Catholic cardinal reaches the reading this site holds by the ordinary work of his own side, which is worth more than a convert would be.

And Lewis knew what the hall was for. His image of mere Christianity as a hall with rooms opening off it is usually quoted by people who want to live in the hall. He said the opposite: the hall is a place to wait in and try doors, not a place to live, and it is in the rooms that there are fires and chairs and meals. The point was never that the doors do not matter. It was that you do not get to the rooms by knocking down the walls.

And inside the same camp, not only between camps

The divisions do not run tidily along the lines the labels promise. They run through the middle of every side.

Two Fathers on the Table, a lifetime apart. Ignatius calls the bread "the medicine of immortality, and the antidote which prevents us from dying." Tertullian, in the same early centuries, calls it "the figure of my body." Both are the early church. Anyone who says the early church spoke with one voice here has read one of them.

Two Fathers on what Adam passed down. Chrysostom says that when Adam fell, "even they that had not eaten of the tree did from him, all of them, become mortal," and stops at mortality. Augustine reads the same passage as guilt in which all sinned. East and West, both orthodox, both early, and the West's reading became the Western default while the East never left the older one.

Two Reformed men on one verse. Jamieson, Fausset and Brown take "it is the gift of God" as faith itself: "and that, namely, the act of believing, or 'faith.'" Calvin calls that "a very common error." Same tradition, same verse, opposite readings, and the doctrine that gets built on those three words rarely mentions that its own founder read them the other way.

Two Reformed men on baptism. Gill says the washing of regeneration in Titus 3:5BH is "not the ordinance of water baptism." Calvin, on the same verse, says "I have no doubt that he alludes, at least, to baptism, and even I will not object to have this passage expounded as relating to baptism." The modern memorial view usually quotes neither of them on it.

Two Calvinists on Hebrews 6, and the same six verses. Barnes works through it and concludes "it seems to me that it refers to true Christians; that the object is to keep them from apostasy." Gill works through the same words and concludes the opposite, that the enlightened here are men "so enlightened as to see the evil effects of sin, but not the evil that is in sin... to have knowledge of the Gospel doctrinally, but not experimentally; yea, to have such light into it, as to be able to preach it to others, and yet be destitute of the grace of God." Real Christians, says one. Never Christians at all, says the other.

And here is the part worth sitting with. Barnes, having said they are true Christians, then says the falling is only supposed, that "the apostle does not say that any true Christian ever had fallen away." Gill, having said they were never truly saved, treats the warning as real. So one gives us real Christians in unreal danger and the other unreal Christians in real danger, and between them they have covered every possibility except the plain one: that the writer meant real Christians in real danger, which is why he wrote a warning.

None of that is inconsistency, and it is not a gotcha. It is what happens to an honest man reading a text that says two things. The line came later, drawn by followers who found the master's hesitation intolerable and resolved it for him. Then the line divided the Body. And in the cases above, the man whose name it carries had already said the thing it forbids.

So when this site holds a tension open, it is not fence-sitting and it is not a lack of nerve. It is standing where Tertullian and Chrysostom and Calvin and Augustine were actually standing, before someone tidied them up.

What the table actually shows

This is testable rather than sentimental, so it was tested. The site's comparison table (Who Believes What) sets thirteen traditions against the questions that supposedly divide them: Roman Catholic, Eastern Orthodox, Oriental Orthodox, Anglican, Lutheran, Reformed, Baptist, Methodist, Pentecostal, Restorationist, Anabaptist, Adventist, and independent evangelical. Read the columns rather than the headlines and two of them collapse.

On salvation, thirteen out of thirteen say the same thing. By grace, through faith. Rome says by grace, received in baptism. The Orthodox describe it as theosis, which is a different frame around the same grace. Lutherans and the Reformed say grace alone through faith alone. Baptists, Methodists, Pentecostals, Restorationists, Anabaptists, Adventists and independents all say by grace through faith. There is no exception on the question everyone assumes is the dividing line. The differences are about where grace is received and what accompanies it, not about whether a man is saved by it.

On authority, every row begins with the same word. Scripture. Every one. What differs is what stands beside it: a magisterium, seven councils, three councils, the Book of Concord, Westminster, Wesley's Notes, Ellen White, present-day experience of the Spirit, or nothing at all. The argument has never been whether Scripture rules. It is about what else is admitted to the room.

Then the actual dividers, and they are narrower than the noise suggests. Baptism splits seven to six, infant against believer's. The Table splits three ways, a real change, a real spiritual presence, or a memorial. Security runs nine conditional, two unconditional, and two divided inside themselves — and the two unconditional columns are the Reformed and the independent evangelicals, a smaller share of Christendom than the volume of that argument would lead anyone to guess.

Every other historic split belongs to the same family. Church government, images and veneration, the saints, the filioque, how worship is regulated, who may be ordained, whether the gifts continue. Not one of them is a question about how a man is saved.

Which is the whole case on one page. The Body agrees about the gospel and divides over sacraments, order and office — and those are precisely the places where Scripture says least, or says it once, or says it in a form that has to be inferred. We have broken fellowship almost entirely on the ground where our ground is weakest.

What the line-drawers were right about

It would be a false conclusion, and an unscriptural one, to say that no line may ever be drawn. Scripture draws some itself, and draws them hard. "Every spirit that confesseth that Jesus Christ is come in the flesh is of God: And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God" (1 John 4:2–3). "Though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed" (Galatians 1:8). Jude tells us to "earnestly contend for the faith which was once delivered unto the saints" (Jude 3). Nicaea drew a line against Arius and was right to; a Christ who is a creature cannot save. Paul himself says "there must be also heresies among you, that they which are approved may be made manifest among you" (1 Corinthians 11:19).

So the question is not whether to draw lines. It is where. And the pattern in the record answers it. The lines Scripture draws are around the facts of the faith: that Jesus is the Christ, come in the flesh, crucified, risen, Lord. The lines that split the church were drawn around explanations of those facts: how the natures join, how the Spirit proceeds, how grace and the will cooperate, how faith and works relate, how security and abiding fit. On every one of those, Scripture states both sides and stops. The church kept going.

The authority behind the lines

All of this assumes a prior question: does the church have the right to decide anything at all? It does, plainly, and Christ said so in the same breath as the discipline process. What that authority is, what Jerusalem did with it, and the four places Scripture shows its limits are taken up in Bind and Loose: What the Church May Decide, and the judging itself in “Judge Not”?. The short of it: the church can bind and loose where Scripture leaves a matter open, and Jerusalem used the power mainly to lift a burden, keeping four things and calling them necessary. Hold what must be held, and be very slow to add a fifth.

Doctrine, singular; doctrines, plural

Read the New Testament with an eye on one word and something stands out. When Scripture speaks well of doctrine, it is nearly always singular, and it belongs to someone: "the people were astonished at his doctrine" (Matthew 7:28); "My doctrine is not mine, but his that sent me" (John 7:16); "the apostles’ doctrine" (Acts 2:42); "the doctrine of Christ" (2 John 9); "sound doctrine" (Titus 2:1). One teaching, handed down, God's. Two Greek words sit underneath that. Didachē, thirty occurrences, is the act of teaching, what a teacher hands on. Didaskalia, twenty-one, is the body of teaching itself, and it is the word in every one of the “doctrines of men” verses. But it is also the word in “all scripture… is profitable for doctrine” (2 Timothy 3:16) and in every “sound doctrine” Paul commends. So the fault was never in the word. It is in the possessive: whose teaching is it. And when Scripture speaks ill of doctrine, it goes plural, and it belongs to us: "teaching for doctrines the commandments of men" (Mark 7:7); "the commandments and doctrines of men" (Colossians 2:22); "carried about with every wind of doctrine, by the sleight of men" (Ephesians 4:14); "divers and strange doctrines" (Hebrews 13:9).

Paul puts the two in one sentence, and the grammar is the whole argument: "mark them which cause divisions and offences contrary to the doctrine which ye have learned" (Romans 16:17). Divisions, plural, are what stand against the doctrine, singular. In Paul's mouth a division is not a defense of the doctrine; it is an offense against it. And when he lists the works of the flesh, "heresies" sits in the list beside "seditions" and "strife" (Galatians 5:20). The Greek word there, hairesis, does not yet mean a wrong belief. It means a choosing, a party, a sect: the act of picking a side and gathering a group around it. That is the thing Paul calls fleshly. Not the truth, but the taking of a stand on a piece of it and making that stand the badge of a camp.

Jesus went further, and he aimed it at the most doctrinally careful people of his day. The Pharisees had a doctrine for everything, worked out from Scripture with real learning, and his verdict was: "Full well ye reject the commandment of God, that ye may keep your own tradition" (Mark 7:9). That is the mechanism of every schism in one line. The tradition was built to protect the commandment. It ended up replacing it. Paul saw the same thing coming in the churches and warned Timothy that the danger was not too little teaching but too much of the wrong kind: men "doting about questions and strifes of words, whereof cometh envy, strife, railings, evil surmisings" (1 Timothy 6:4), and a day when people, "after their own lusts shall they heap to themselves teachers, having itching ears" (2 Timothy 4:3). Forty-five thousand denominations, and about sixteen questions between them, is what heaped-up teachers look like at scale.

So when the word doctrine sits badly with someone, Scripture is on their side more than they might expect, with one distinction. There is a doctrine, singular, the teaching of Christ handed on by the apostles, and Scripture guards it fiercely. There are doctrines, plural, the explanations men build on top of it and then require, and Scripture names them as the thing that divides. The church's history is largely the story of the second being mistaken for the first.

The old phrase, and who actually said it

The line most often quoted on this subject, "in essentials unity, in non-essentials liberty, in all things charity," is usually credited to Augustine. It is not his. Historians have traced it to an obscure Lutheran peacemaker writing in the wreckage of the Thirty Years' War, Rupertus Meldenius, around 1627, in a tract pleading with his own side to stop dividing. That is a fitting origin. The rule was not handed down from the Fathers as a settled principle; it was discovered, late, by someone standing in the middle of the damage.

What the early church did instead

The first Christians had the same tensions in front of them. They had John 1:14BH and John 15:26BH and the letters of Paul and James. What they did not have was a mechanism, and they did not build one. "They continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers" (Acts 2:42). When the first real dispute came, over whether Gentiles must keep the law, the council at Jerusalem drew the smallest line it could: "it seemed good to the Holy Ghost, and to us, to lay upon you no greater burden than these necessary things" (Acts 15:28). No greater burden. That is the apostolic instinct, and it is the opposite of the one that has governed the church since. The one teaching manual that survives from that period reads the same way. The Didache tells a church to pour if it has no river, and to bear what it can if it cannot bear the whole yoke. The earliest Christian instruction we have, and its instinct is to lower a bar rather than raise one.

Jesus gave the same instruction directly, when his own disciples tried to draw a line around themselves. "Master, we saw one casting out devils in thy name, and he followeth not us: and we forbad him, because he followeth not us. But Jesus said, Forbid him not: for there is no man which shall do a miracle in my name, that can lightly speak evil of me. For he that is not against us is on our part" (Mark 9:38–40). He followeth not us. That is the sentence every schism has spoken, and this is the answer it received.

Paul's rule for the disputed questions is the same. "Him that is weak in the faith receive ye, but not to doubtful disputations... Let every man be fully persuaded in his own mind" (Romans 14:1, 5). Be persuaded. Hold your reading. And receive the brother who holds the other one, because "who art thou that judgest another man’s servant? to his own master he standeth or falleth" (Romans 14:4). Christ himself named where the lines come from: "in vain they do worship me, teaching for doctrines the commandments of men" (Matthew 15:9).

Where this lands

Where the Bible plainly says a thing, say it and stand there. Where the Bible plainly says two things, stand on both, and be slow to build the bridge between them into a wall. "Knowledge puffeth up, but charity edifieth. And if any man think that he knoweth any thing, he knoweth nothing yet as he ought to know" (1 Corinthians 8:1–2). "Above all these things put on charity, which is the bond of perfectness" (Colossians 3:14). The way forward is backward, to a church that continued in the apostles' doctrine without adding to it, and to the prayer that was prayed for us before any of the lines existed: "that they may be made perfect in one; and that the world may know that thou hast sent me" (John 17:23).

One line worth drawing

Every line on this page was drawn to protect something true. That is what makes them hard to argue with one at a time, and it is why the men who drew them were not fools. But a line drawn through the middle of a tension does not preserve the truth; it keeps half of it and hands the other half to the people on the far side, who then defend it against you.

If a line has to be drawn, draw it here. Thirteen traditions, counted on the companion page, and all thirteen say a man is saved by grace through faith, and all thirteen name Scripture first. Roughly sixteen questions divide the visible church and not one of them is that one. So the line goes around the gospel, and everything else is inside the house, where an argument is allowed to be an argument and not a wall.

The body of Christ lives among the denominations, in spite of them.

Where the line actually belongs, and the three marks Scripture gives, are in What Makes a Teaching False. Related: The Church, One Story (the full timeline, each era with its sourced deep dive), The Church Today (the live tracker of splits and gatherings), Creeds, Free Will, Grace, The Warning and the Way Home. Sources: Philip Schaff, History of the Christian Church vol. III §§138–139 (public domain, CCEL); Common Christological Declaration, Catholic Church and Assyrian Church of the East, 11 Nov 1994; Zurlo, Johnson & Crossing, Status of Global Christianity, 2025, line 31. Scripture verbatim KJV.