Which Doctrines to Divide Over: A Biblical Guide

Question 0028.

Knowing which doctrines to divide over is one of the most important and most difficult judgements a believer ever has to make. Get it wrong in one direction and you will fracture fellowship over matters that should never have separated you. Get it wrong in the other and you will keep company with those who deny the gospel itself, all in the name of peace. The stakes really are this high. Churches have split over carpet colour and the style of the music, while others have welcomed open heresy rather than disturb the calm.

So I want to work through this carefully, because it deserves more than a slogan. Scripture neither commands us to divide over everything nor forbids us to divide over anything. It draws lines, and it teaches us to draw them in the right places. My aim here is to set out the principle of division, the levels at which doctrines sit, the tests that help us weigh a particular case, and the spirit in which all of this must be done, so that you are neither a fighter nor a coward but a faithful steward of both truth and love.

Division Is Sometimes Commanded

Before we ask which doctrines to divide over, we have to establish that division is sometimes right at all, because many modern believers assume unity must be preserved at any cost. Scripture does not assume that. Paul writes to the Romans, “I appeal to you, brothers, to watch out for those who cause divisions and create obstacles contrary to the doctrine that you have been taught; avoid them” (Romans 16:17). Notice that it is the false teachers who are the dividers, and the faithful response is to avoid them. Separation, in that case, is obedience.

He is even sharper with Titus: “As for a person who stirs up division, after warning him once and then twice, have nothing more to do with him” (Titus 3:10). And he tells the Corinthians not to associate with someone who bears the name of brother yet lives in open, unrepentant sin (1 Corinthians 5:11). So the New Testament plainly envisages situations where the loving and godly thing is to part ways. The question was never whether we may ever divide. The question is over what.

We should feel the weight of that before we go further. Division is a serious wound in the body of Christ, never to be inflicted lightly, and the same apostle who commands it in some cases pleads against it in many more. To divide is sometimes a duty and far more often a sin, and the difference between the two is exactly what we are trying to learn.

The Three Levels of Doctrine

The single most useful tool for answering which doctrines to divide over is the recognition that not all doctrines carry the same weight. It has become common, and I think helpful, to speak of three levels. First-order truths are those on which the gospel itself depends, the deity and humanity of Jesus, His bodily resurrection, justification by grace through faith, the Trinity, the authority of Scripture. To deny these is to deny the faith. Second-order truths are those that genuinely divide true Christians into different churches, baptism, church government, the manner of the Lord’s presence at the table. Third-order truths are the matters on which sincere believers in the same congregation may simply differ, the timing of certain prophetic events, secondary questions of practice and conscience.

These levels are not a way of caring less about truth. They are a way of caring about each truth in its proper proportion. The error to avoid is treating every doctrine as first-order, so that every disagreement becomes a test of fellowship, or treating every doctrine as third-order, so that even the gospel becomes negotiable. Wisdom lies in assigning each matter to its right level and then responding accordingly. I have laid out these tiers more fully in the difference between primary, secondary, and tertiary doctrines, and the related question of the gospel core in which doctrines are essential for salvation.

First-Order Doctrines to Divide Over

At the first level, division is not only permitted but required, because what is at stake is the gospel by which we are saved. These are the doctrines to divide over without apology. When the apostle John addresses those who denied that Jesus had come in the flesh, he does not counsel patient dialogue; he calls them antichrists and tells the church not even to receive them into their homes or greet them (2 John 7-11). When Paul confronts a gospel of works added to faith, he pronounces an anathema on any who preach it, angel or apostle (Galatians 1:8-9).

The reason is simple. A first-order denial does not produce a weaker Christian; it produces a different religion wearing Christian clothes. To maintain spiritual fellowship with a teacher who denies the resurrection, or the deity of Jesus, or salvation by grace, is not generosity. It is to call darkness light and to put the souls in your care at risk. Here firmness is love, and a refusal to separate is itself a failure of love toward the flock and toward the truth.

It is worth saying that this is a small list. The truths that genuinely unmake the gospel are few, clear, and held by faithful Christians across every age and tradition. That is itself a mercy, because it means the doctrines to divide over at this level are not a matter of private opinion or denominational quirk. They are the shared confession of the whole believing church, and they are worth contending for to the last.

Second-Order Doctrines and Honest Separation

The second level is more delicate, because here we are dealing with real Christians who genuinely disagree. I am a Baptist by conviction; I believe baptism is for those who profess faith, and that conviction shapes the church I serve. A faithful Presbyterian believes otherwise. Neither of us thinks the other is unsaved, yet we cannot both practise our convictions in the same congregation. So we belong to different churches, and that is an honest, peaceable kind of separation rather than a hostile one.

This is the category most often mishandled. Second-order differences may rightly lead to different denominations and congregations, but they must never lead us to deny that the other is a brother or sister in Christ. The line we draw at this level is organisational, not spiritual. I can disagree with my paedobaptist friend, decline to share a pulpit on the ordinances, and still gladly call him a fellow servant of the same Lord, pray with him, and look forward to the same heaven.

To treat a second-order matter as though it were first-order, unchurching everyone who differs, is a grave and common sin. It mistakes a family difference for a gospel denial, and it has produced some of the ugliest and most needless wreckage in church history. So I hold my Baptist convictions firmly and teach them plainly, and at the same time I refuse to deny the faith of godly believers who read the secondary matters differently within the bounds of orthodoxy.

Third-Order Doctrines and the Refusal to Divide

At the third level, division is usually a failure rather than a faithfulness. These are the matters on which Scripture leaves room, and on which Paul actively commands forbearance. Romans 14 is the model, where he tells believers who differed over food and days to stop passing judgement on one another and to welcome one another instead. “Who are you to pass judgement on the servant of another? It is before his own master that he stands or falls” (Romans 14:4). To break fellowship over such things is to despise a brother for whom Christ died.

I would put many of the finer questions of prophetic timing here, and a host of practical matters of conscience and preference. I hold firm dispensational and premillennial convictions, and I teach them gladly, but I will not break fellowship with a godly believer who reads the prophetic calendar differently within the bounds of orthodoxy. To make a test of communion out of a third-order matter is to manufacture a division the Lord never authorised, and the damage it does to churches and friendships is real and lasting.

The mark of maturity at this level is the freedom to hold a strong view and a loose grip at the same time. I can argue my position warmly, even vigorously, and still throw my arm around the brother who lands elsewhere. If our fellowship cannot survive a disagreement about the order of end-times events or a matter of Christian liberty, the problem is not the doctrine. The problem is that we have made an idol of being right.

Tests for Weighing a Particular Case

When a concrete disagreement lands on your desk, a few questions help you locate it. Does this doctrine touch the gospel itself, so that denying it would unmake a person’s salvation? If so, it is first-order. Does the whole church of every age treat it as a settled essential, or has it been a matter of honest difference among the faithful? The consensus of the saints across the centuries is a useful check against our private overreactions. Is the person teaching error, or simply holding a different view within orthodoxy? There is a world of difference between a brother who sees a secondary matter differently and a false teacher leading people away from Christ.

And one more test, often neglected: is this a matter of doctrine or of temperament? A great deal of so-called doctrinal division is really a clash of personalities, preferences, or wounded pride dressed up in theological language. Be ruthlessly honest about that. Before you divide over a doctrine, make sure it is actually the doctrine you are dividing over, and not your own ego. If the issue cannot survive that honesty, it was never worth a division in the first place. I have written further on this discernment in how to know if a disagreement is worth breaking fellowship.

The Spirit in Which We Divide

Even when division is genuinely necessary, the manner of it matters enormously. Paul, who could pronounce an anathema, also wept over the enemies of the cross (Philippians 3:18) and longed for his own kinsmen to be saved (Romans 9:2-3). There is no warrant here for the harsh, combative spirit that some mistake for faithfulness. To divide over a first-order denial is sometimes our duty; to do it with arrogance, relish, or contempt is always our sin. We contend for the faith with grief, not glee.

So I hold two things together. I will not surrender the gospel for the sake of a false peace, and I will not pretend that being right entitles me to be unkind. The believer who divides over everything is a danger to the church, and so is the believer who will divide over nothing. The mature path is to be immovable on the essentials, gracious on the secondary, generous on the third-order, and Christlike in the whole of it. That is harder than either extreme, which is precisely why it is so rare and so needed.

A Plea Against Needless Division

Having spent so long defending the cases where we must divide over a doctrine, I want to spend a moment on the far larger number of cases where we must not. My own years in ministry have taught me that the great majority of church splits I have seen had nothing to do with the gospel at all. They were about buildings, budgets, leadership styles, music, and old grudges given a theological costume. Almost none of them were genuine cases worth dividing over, and almost all of them left wounds that took years to heal.

That should sober us. For every believer tempted to tolerate real heresy, there are many more tempted to divide over what they should bear with, treating a personal preference or a third-order opinion as though it were a matter to divide over. The flesh loves a righteous-sounding quarrel, and nothing flatters our pride quite like the belief that we are contending for the truth when we are really just getting our own way. I have had to repent of this more than once.

So before you reach for separation, reckon honestly with how rare the genuine occasions are. The things we must divide over are few; the matters we are called to suffer in love are many. A church that has the courage to divide over the gospel and the patience to bear with one another in everything else is a healthy church, and it is the kind of church the New Testament everywhere assumes.

And when separation is truly unavoidable, remember that even then the aim is the recovery of the erring, not the satisfaction of being proved right. We divide over the gospel, when we must, with tears and with an open door, longing always for the day when truth and unity are no longer in any tension at all because together we see our Lord face to face.

So, now what?

Take the disagreements you are actually facing and locate each one honestly. Is this the gospel itself, a second-order matter that may mean different churches but never a denial of brotherhood, or a third-order question over which Scripture tells you to bear with one another? Most of the heat in our divisions comes from filing things at the wrong level, and simply getting the level right resolves a great deal.

Then resolve to be the rare believer who holds truth and love together. Stand firm where Scripture stands firm, hold loosely where it leaves room, and let grace mark even your necessary separations. Knowing which doctrines to divide over is not about being a hard person or a soft one; it is about being a faithful one. So where, specifically, have you been dividing over what you should bear with, or bearing with what you should oppose?

For Further Study

Those who wish to think further about the levels of doctrine and the limits of fellowship will find help across the dispensational and broadly evangelical tradition. Charles Ryrie’s clear handling of doctrine in his Basic Theology models the kind of proportion this question requires, distinguishing the essentials from matters of liberty. Lewis Sperry Chafer’s Systematic Theology, for all its breadth, keeps the gospel central as the unmoveable core. J. Dwight Pentecost and John Walvoord, particularly in their prophetic writings, demonstrate how one may hold firm convictions on second- and third-order matters such as eschatology while recognising them as distinct from the saving essentials. Millard Erickson’s Christian Theology offers a careful evangelical treatment of the criteria for theological priority, and Arnold Fruchtenbaum’s work shows the same instinct to teach disputed matters plainly without unchurching those who differ. Read widely, weigh carefully, and let the consensus of faithful teachers across the centuries temper your own private judgements.

I appeal to you, brothers, to watch out for those who cause divisions and create obstacles contrary to the doctrine that you have been taught; avoid them.

Romans 16:17 (ESV)