“I believe in one, holy, catholic and apostolic Church.”

Christians have confessed those words for centuries in the creed commonly called the Nicene Creed. I believe them. Jesus Christ has one Church.

But saying that raises an unavoidable question: What exactly is the one true Church?

Is it one institution with an earthly headquarters? Is it every organization that calls itself Christian? Is it an invisible collection of individuals who need no pastors, no discipline, no ordinances, and no local church at all?

The New Testament will not let us settle for any of those shortcuts. Jesus established a real Church. It is one body under one Head. It takes visible, organized form in the world. It has leaders with genuine authority. And yet those leaders remain servants of Christ, accountable to the apostolic Word entrusted to them.

The question, then, is not whether the Church has authority. It does.

The question is whether the Church possesses authority over the Word of God—or whether the Church itself must remain under that Word.

Jesus did not say, “I will build my denominations.” He said, “I will build my church” (Matthew 16:18). Paul speaks of “one body” and “one Spirit,” with “one Lord, one faith, one baptism” (Ephesians 4:4–5). Christ is the Head of that body (Colossians 1:18), and the Church is also pictured as His bride (Ephesians 5:25–32).

That means the deepest reality of the Church is not a mailing address, a denominational logo, or a chain of administration. The Church belongs to Jesus Christ.

In its fullest sense, the universal Church is the people Christ has redeemed and united to Himself across nations, centuries, denominations, and even death. Believers who have died in Christ have not ceased to belong to His body. Those living today do not constitute a different Church from Peter, Paul, Augustine, the Reformers, or faithful believers whose names history never recorded.

The word catholic in the ancient creed means universal. It does not belong exclusively to the Roman Catholic Church. The confession is that Christ has one universal people, not that every Christian must belong to one later ecclesial communion in order to belong to Christ.

But that does not make the Church merely invisible or abstract. The New Testament immediately gives this living body visible form.

I think the Church is best understood as a living organism rather than an organization.

A body is alive. A bride is a person in relationship. A temple is built of “living stones” (1 Peter 2:5). These images describe something deeper than an institution.

But living things take form. The Church does too.

In Acts, Christians gather in identifiable congregations. Elders are appointed (Acts 14:23). Overseers are charged to shepherd the flock (Acts 20:28). Paul addresses overseers and deacons (Philippians 1:1) and gives qualifications for both offices (1 Timothy 3). Titus is instructed to appoint elders in the towns of Crete (Titus 1:5). Jesus gives the Church a process for discipline (Matthew 18:15–20). Believers are told to respect and obey their leaders (1 Thessalonians 5:12–13; Hebrews 13:17).

So “Jesus and me” Christianity is not New Testament Christianity. Christ did not save isolated spiritual consumers who float from sermon to sermon without accountability. He gathers a people.

The one Church therefore becomes visible in local churches: believers worship together, hear the Word, baptize, share the Lord’s Supper, exercise discipline, care for one another, send missionaries, and submit to qualified shepherds.

The institution matters. The offices matter. The local congregation matters.

But organization serves the living organism. The institution serves Christ and His people. It does not become the head of the body.

Church authority is real. That point should be stated plainly because sola Scriptura is often caricatured as though Protestants believe pastors, councils, creeds, and church history have no authority at all.

That is not what the doctrine means.

Pastors teach with authority. Elders shepherd with authority. Churches exercise discipline with authority. Historic creeds can faithfully summarize biblical truth. Councils can resolve controversies wisely. Christian tradition can preserve the hard-won wisdom of generations who studied Scripture before we were born.

But every one of those authorities is derived.

Christ is the Head of the Church. The apostles were His authorized witnesses. The Church is “built on the foundation of the apostles and prophets, with Christ Jesus himself as the chief cornerstone” (Ephesians 2:20). Jude speaks of “the faith” entrusted to God’s people once for all (Jude 3). Paul describes Scripture as God-breathed and sufficient to equip the servant of God for every good work (2 Timothy 3:16–17).

That gives us a simple distinction: church authority is ministerial, not magisterial in the sense of being sovereign over revelation. A shepherd ministers what belongs to Christ.

The bishop is a steward of the Word, not its master.

Sola Scriptura, therefore, does not mean that Scripture is the only authority in the Christian life. It means Scripture is the only infallible norm by which every other Christian authority can finally be tested.

This is where we need to be careful not to caricature Roman Catholic teaching.

The Catholic Church does not officially teach that its Magisterium is superior to God’s Word. Vatican II says the Church’s teaching office “is not above the word of God, but serves it.” The Catechism repeats the same point. Catholic teaching also holds, however, that Scripture and Sacred Tradition form one deposit of faith and that the task of authentically interpreting that deposit belongs exclusively to the living Magisterium. Canon law describes the Bishop of Rome as Peter’s successor and as possessing supreme, full, immediate, and universal ordinary power in the Church.

That makes the disagreement much more precise than “Catholics follow the Church while Protestants follow the Bible.” That slogan is too crude to be useful.

The real question is this: When an ecclesiastical authority claims to speak for God, what authority can finally test that claim?

If the Church can be corrected by the apostolic Word, then the Word functions as a standard above the Church’s judgment. If the Church’s final interpretation of both Scripture and Tradition cannot itself be corrected, then the institution becomes the final earthly court in every dispute about what the Word means.

That is the issue. And four objections bring it into focus.

Matthew 16 deserves its full weight. Jesus addresses Peter directly, speaks of building His Church, gives him the keys of the kingdom, and speaks of binding and loosing (Matthew 16:18–19). Peter clearly holds a prominent place among the apostles. He speaks for the Twelve, preaches at Pentecost, plays a central role in the early chapters of Acts, and is commanded by Christ to feed His sheep (John 21:15–17).

We should not diminish Peter in order to win an argument.

But Peter’s prominence is not the same as the question of whether the bishop of one later city inherits universal, uncorrectable jurisdiction over every church. Matthew 16 does not explicitly state that proposition.

The authority of binding and loosing is also given in a broader church context in Matthew 18:18. Paul says the household of God is built on the foundation of the apostles and prophets, not Peter alone (Ephesians 2:20). Revelation pictures the New Jerusalem with twelve foundations bearing the names of the twelve apostles (Revelation 21:14).

And Peter himself could be corrected. In Antioch, Paul says he “opposed him to his face” because Peter’s conduct was not in step with the truth of the gospel (Galatians 2:11–14).

That is not a cheap argument against the formal Catholic doctrine of papal infallibility, which is far narrower than the claim that a pope can never sin, make a poor decision, or need personal correction. It does establish a more basic principle: even the most prominent apostolic leader remains accountable to the truth of the gospel.

Peter was a shepherd of the Church. He was not master of the revelation given to the Church.

Yes. Paul calls the Church of the living God “the pillar and foundation of the truth” (1 Timothy 3:15). Protestants should not explain that verse away. It gives the Church an extraordinarily high calling.

God has entrusted His truth to a people. The Church must guard it, teach it, display it, defend it, and live it before the world.

But the verse does not say the Church creates truth or that every institutional judgment of the Church is incapable of error. The same New Testament that calls the Church the pillar of truth repeatedly warns churches and church leaders that they can depart from truth.

Paul warned the Ephesian elders that men would arise even from among them and distort the truth (Acts 20:29–30). The Galatian churches were being drawn toward another gospel (Galatians 1:6–9). In Revelation 2–3, Christ rebukes actual churches for false teaching, moral compromise, spiritual deadness, and loss of their first love. He even threatens to remove a church’s lampstand if it refuses to repent (Revelation 2:5).

A pillar is valuable because of what it upholds. The Church is faithful when she upholds the truth entrusted to her. If she contradicts that truth, her title does not transform error into truth.

This is one of the strongest arguments and deserves a serious answer.

The New Testament did not fall from heaven with a leather cover and a table of contents. The Church existed before the New Testament was complete. Apostolic writings circulated among churches, were copied, read publicly, and exchanged. Some books were recognized very early and widely; others were disputed in parts of the Church for a time.

The history is actually useful because it is more complicated than the slogan “the Church gave us the Bible.”

Early in the fourth century, Eusebius distinguished between books widely received and those that remained disputed in some churches. In AD 367, Athanasius of Alexandria’s Thirty-Ninth Festal Letter provided the earliest surviving list naming the twenty-seven New Testament books shared by Catholic, Orthodox, and Protestant Christians today. North African councils later listed those same twenty-seven New Testament books.

That history shows the Church doing something essential: recognizing, preserving, reading, and handing down the apostolic writings.

But recognition is not creation.

Paul’s letter to the Romans possessed apostolic authority when Paul wrote it. A later council did not make the book of Romans inspired. Within the New Testament itself, 2 Peter speaks of Paul’s letters alongside “the other Scriptures” (2 Peter 3:15–16). The recognition of apostolic writings as Scripture did not suddenly begin centuries later.

Even Catholic teaching makes an important distinction here. Vatican II says the biblical books are sacred and canonical because they were written under the inspiration of the Holy Spirit, have God as their author, and were handed on to the Church. Their inspiration comes from God, not from a later vote.

So I am happy to say that the historic Church gave us the Bible in the sense that she preserved it, recognized it, copied it, read it, defended it, and handed it to later generations.

But God gave the Bible to the Church.

The Church did not give the Bible its authority.

This objection lands because Protestant history gives it ammunition.

Christians can be stubborn, individualistic, and careless interpreters. Protestant churches have divided over important and unimportant questions. Some people open a Bible, ignore the historic Church, announce what “God told me,” and build a ministry around themselves.

That is not a strength. It is a failure.

But it is not sola Scriptura either.

Sola Scriptura is not “me, my Bible, and nobody else.” A Christian should read Scripture in the Church, under qualified shepherds, in conversation with the creeds, councils, teachers, and believers who came before us. We should be humble enough to admit that our interpretation may be wrong.

At the same time, the fact that interpreters are fallible does not logically prove that Christ established one post-apostolic interpreter whose judgments are infallible. It simply moves the question back one step: How does a Christian identify which institution, if any, has been given that kind of infallible authority?

Representatives of Roman Catholic, Eastern Orthodox, Oriental Orthodox, and Protestant traditions all appeal, in different ways, to history, apostolic teaching, councils, and Scripture; Catholic and Orthodox traditions also make strong claims about episcopal succession. They still reach different conclusions about where final earthly authority resides. Every convert must examine those competing claims and make a judgment.

The New Testament expects that kind of testing. The Bereans received Paul’s message eagerly and examined the Scriptures daily to see whether what he said was true (Acts 17:11). Paul warns the Galatians that even an apostle—or an angel from heaven—must be rejected if he proclaims a different gospel (Galatians 1:8–9). Jesus rebukes religious leaders when their tradition nullifies the Word of God (Mark 7:8–13). John tells believers to test the spirits (1 John 4:1).

None of those passages teaches contempt for the Church. They teach that religious authority is never self-authenticating merely because it is religious authority.

The Holy Spirit guides the Church. Jesus promised the Spirit would guide His apostles into truth (John 16:13), and the Spirit continues to lead, sanctify, gift, and preserve Christ’s people. But the promise of the Spirit is not permission for every later Christian institution to declare itself beyond correction.

The safeguard against individualism is not to enthrone the individual. It is to place the individual and the institution under the same Lord and the same apostolic truth.

This also means we should not talk as though “tradition” is a dirty word.

Paul explicitly tells the Thessalonians to hold fast to the teachings—or traditions—they received from the apostles, whether by word of mouth or in writing (2 Thessalonians 2:15). Apostolic tradition is binding.

The question is not whether the apostles taught orally. Of course they did. The question is how a later claim to apostolic tradition is tested once the apostles themselves are gone.

Historic Christianity helps us tremendously here. The ancient creeds guard essential truths about the Trinity and the person of Christ. Early Christian writers show us how believers close to the apostolic period read Scripture. Councils expose us to arguments we may never have considered. The accumulated wisdom of the Church should make us less arrogant, not less biblical.

But tradition is a witness to the apostolic faith, not a license to contradict it.

A tradition deserves Christian obedience to the extent that it faithfully hands on what Christ and His apostles taught. Its age does not make it divine. Its popularity does not make it divine. Its institutional approval does not make it divine.

God’s Word is divine.

The one true Church is not hard to find because Christ somehow lost it. It is hard to confine to a single institution because the New Testament describes the Church first as a people united to Christ.

The Church is the body of Christ. Christ is its Head. The Church is His bride. The Spirit gives her life. The apostles and prophets form her foundational witness, with Christ Himself as the cornerstone. And wherever believers truly belong to Christ, they belong to His Church.

That universal Church necessarily becomes visible. Christians should join real local churches, receive the Word, participate in baptism and the Lord’s Supper, submit to godly shepherds, serve other believers, practice discipline, pursue holiness, and carry the gospel into the world.

But no congregation, denomination, patriarchate, communion, or bishop becomes Christ.

Local churches can be healthy or unhealthy. They can be faithful or compromised. They can repent, and they can refuse to repent. Revelation 2–3 makes that painfully clear. Not every doctrinal disagreement creates a false church, and Christians can disagree strongly over secondary questions while still belonging to the same Lord. But a church is never made faithful merely by possessing an ancient name, a historic building, an impressive succession, or a modern brand.

Its faithfulness is measured by faithfulness to Christ and the apostolic gospel.

That is why I cannot identify the one true Church simply with Rome, Constantinople, Canterbury, Wittenberg, Geneva, Nashville, or any other earthly center. Those names can represent important chapters in Christian history. None is the Head of the body.

Jesus is.

There are two extremes that Christians should avoid.

One says, “I do not need the Church. I have Jesus and my Bible.” That ignores the visible body Christ established and the shepherds He gives His people.

The other says, “My Church is the final authority, so my Church’s interpretation cannot finally be judged by Scripture.” That risks placing the steward beyond correction by the Word he was appointed to steward.

We do not have to choose between the Bible and the Church.

Christ gives His Word to His Church, and His Church lives under the authority of her Lord.

The one true Church does not belong to Rome, Constantinople, Canterbury, Wittenberg, Geneva, Nashville, or me. It belongs to Jesus Christ. He purchased her with His blood. He is her Head. His Spirit gives her life. His apostles delivered the faith. His Word governs her. And one day He will return for His bride.

The Church is entrusted with God’s Word.

She is not sovereign over God’s Word.

When you hear the phrase “the one true Church,” what do you believe makes a church truly Christ’s: its institutional lineage, its confession, its faithfulness to apostolic teaching—or some combination of those? And what authority should be able to correct a church when it goes wrong?