Is Doctrine the Same Thing as Opinion?

Question 59.

Doctrine or opinion is a distinction our culture works hard to blur, treating every confident religious claim as though it were fundamentally a matter of personal preference, one view among equally valid others rather than a claim that could actually be true or false. This pressure seeps into the church too, so that even sincere believers sometimes speak of doctrine the way they would speak of a favourite style of worship music, a matter of taste rather than a matter of fact. Scripture will not let this distinction collapse so easily. It consistently presents doctrine as objective truth about a real God who actually exists and has actually spoken, not as one preference among many equally legitimate options.

I want to explain why doctrine and mere opinion are genuinely different categories, what happens when a church loses sight of that difference, and how to hold your own doctrinal convictions with appropriate confidence without sliding into either arrogance or a mushy relativism that pretends nothing can really be known.

What Makes Something an Opinion Rather Than a Fact

When weighing doctrine or opinion against each other, an opinion, properly understood, is a matter of genuine preference where reasonable people can disagree without either being objectively wrong, which colour looks best in a room, which style of music moves you most deeply. A fact, by contrast, is objectively true or false regardless of how anyone feels about it, whether it is convenient, or how many people happen to agree with it. Doctrine, when it addresses the central claims of the Christian faith, the existence and character of God, the deity and resurrection of Christ, the reality of sin and salvation, falls firmly into the second category. These are claims about what actually happened and what is actually true, not expressions of preference about how someone would like the universe to be arranged.

Why Disagreement Does Not Prove Doctrine Is Simply Opinion

The most common argument for treating doctrine as opinion runs like this: sincere, intelligent people disagree about it, therefore it must not be objectively knowable. This reasoning sounds persuasive until you notice it would disqualify entire fields nobody actually treats as matters of opinion. Historians disagree sharply about the causes of major wars without anyone concluding that history is therefore purely subjective. Scientists disagree about the interpretation of complex data without anyone concluding that physical reality is simply whatever each scientist prefers to believe. The mere existence of disagreement, as I explore further in the piece on why Christians disagree on doctrine, never actually settles whether a claim is objectively true. It only shows that reaching agreement about the truth is genuinely difficult, which is an entirely different matter altogether.

Scripture’s Own Claim to Objective Truth

Scripture never presents its central claims as one option among several equally valid religious perspectives. Jesus states plainly in John 14:6 that He is the way, the truth, and the life, and that no one comes to the Father except through Him, a claim that is either objectively true or objectively false, with no comfortable middle ground where it could be true for some people and false for others. Paul argues at length in 1 Corinthians 15:14-19 that if Christ has not actually been raised, the entire Christian faith is worthless and Christians are, of all people, most to be pitied, precisely because he understood the resurrection as a factual historical claim rather than a comforting personal opinion that remains meaningful regardless of whether it actually happened.

Where the Distinction Genuinely Gets Complicated

None of this collapses the doctrine or opinion distinction into a single simple rule. It does not mean every doctrinal question carries equal certainty or that Christians who disagree about secondary matters must have one side simply guessing. The categories of primary, secondary, and tertiary doctrine exist precisely because Scripture’s clarity is not evenly distributed across every question. The deity of Christ is not a matter of opinion in any meaningful sense. The precise timing of certain end times events involves considerably more genuine interpretive difficulty, where careful, godly scholars examining the same texts have reached different conclusions. Recognising this range does not concede that doctrine is opinion after all. It simply acknowledges that objective truths vary in how clearly and easily they can currently be discerned, which is true of many fields, historical research and forensic science included, not just theology.

Doctrine or Opinion: What a Church Loses by Getting This Wrong

A congregation that quietly starts treating central doctrine as a preferred opinion loses the ability to say anything is actually false, which means it eventually loses the ability to say anything is actually true either, since truth and falsehood are correlative terms that only mean something together. Preaching becomes suggestion rather than proclamation. Church discipline becomes impossible to justify, since correcting someone implies their view was actually wrong rather than simply different. Evangelism becomes awkward and apologetic, since inviting someone to believe something implies their previous unbelief was mistaken rather than an equally valid alternative. The practical costs of collapsing doctrine into opinion are considerable, even when the shift happens gradually and with the best of intentions.

It is worth adding that confidence about objective doctrinal truth does not license arrogance toward those who see things differently. Holding a view as objectively true is entirely compatible with genuine humility about your own understanding, patience with those still working through a question, and real charity toward believers who land somewhere different on a secondary matter after careful, honest study. The opposite of treating doctrine as mere opinion is not harsh certainty about every disputed detail. It is settled confidence about what Scripture clearly teaches, held together with genuine humility about the considerable amount that remains difficult, debated, or simply not yet fully understood this side of glory.

A further point worth making is that this whole discussion assumes something many people in a relativistic culture no longer assume automatically, that truth about God is even the kind of thing that can be known at all. If you find yourself genuinely uncertain whether religious claims can be objectively true in the same way a historical or scientific claim can be, that uncertainty is itself worth examining honestly before the doctrine or opinion question can be settled either way, since the answer to this deeper question shapes everything that follows from it, including how you approach every other article on this site.

A useful test for telling doctrine and opinion apart in your own thinking is to ask what kind of evidence, in principle, would actually settle the question. A genuine opinion, which restaurant serves the best coffee in town, cannot be settled by evidence at all, since it is simply a report of personal preference with no fact of the matter standing behind it either way. A genuine doctrinal claim, whether Jesus rose bodily from the dead, can in principle be settled by evidence, eyewitness testimony, the transformed behaviour of frightened disciples who suddenly became bold witnesses, the empty tomb no ancient opponent of Christianity ever seriously disputed. The fact that doctrine invites this kind of evidential examination at all, rather than simply being a matter of taste, is itself strong evidence that doctrine and opinion belong to genuinely different categories.

It is also worth noticing how inconsistently our culture actually applies this instinct. Few people genuinely treat scientific or historical claims as mere opinion, insisting instead that careful evidence and reasoning can and should settle disputed questions in those fields. The pressure to treat doctrine differently, as though religious claims alone were exempt from this ordinary standard, deserves to be questioned rather than simply accepted as an obvious feature of how modern life works. Christianity has never asked to be believed on a different basis than other significant truth claims. It has always invited the same kind of careful examination any other claim to objective truth would expect to receive, and it has nothing to fear from a sceptic willing to examine the actual evidence honestly rather than dismissing the whole subject in advance as beyond rational discussion.

So, now what?

The next time you catch yourself, or someone else, describing a central Christian doctrine as just my opinion or just how I see it, pause and ask what is actually being claimed. Doctrine addressing the person of Christ, the reality of sin, and the way of salvation makes claims about what is objectively true, not preferences about what feels most comfortable to believe. Hold that truth with settled confidence, offer it with genuine humility, and resist the cultural pressure to soften a factual claim into a matter of taste simply because taking it seriously as fact is sometimes uncomfortable. Getting the doctrine or opinion question right at the outset will shape every other theological conversation you ever have.

Hold firm to the trustworthy word as taught, so that he may be able to give instruction in sound doctrine and also to rebuke those who contradict it.

Titus 1:9, ESV