Why are there so many denominations, and how can they all claim to be right?
By Will Bourne · Question 109
The direct answer
Churches cannot all be correct where they make contradictory claims. I do not believe a denominational label settles who belongs to Christ. Scripture and the life centered on Jesus must examine every tradition, including my own. Historic creeds can be useful witnesses, but I do not use agreement with later terminology as the sole test of whether a person is sincerely following Jesus.
First clarify the names
The examples mix broad families with particular churches. This is a brief map, not a complete account of any tradition. Official teaching and the beliefs of individual members also need to be distinguished.
Catholic, Eastern Orthodox, and many Protestant churches share the Nicene confession of the Trinity. On that doctrinal definition, Jehovah’s Witness and Latter-day Saint teaching falls outside the boundary. Those communities dispute that boundary and identify themselves as Christian. State the criterion openly. Describing a doctrinal disagreement does not establish a judgment about the character or eternal destiny of every member.
Source Question 108 answers Is Jesus God from the historic Trinitarian position. This entry makes that framework visible rather than treating it as an uncontested classification. A reader can still ask whether that framework is true. The previous entry gives arguments and objections to examine.
| Name | How it fits |
|---|---|
| Protestant | A broad family of churches associated with the Reformation and its later developments, not one denomination. Methodists are part of this family. |
| Methodist | A Protestant family in the Wesleyan tradition. The United Methodist Church is one Methodist church; the terms are not interchangeable. |
| Catholic | Here, the Catholic Church in communion with the pope. A major historic communion, distinct from Protestant churches. |
| Eastern Orthodox | A major historic communion, also distinct from Protestantism. It shares the historic Trinitarian confession while differing from Catholicism over church authority and other matters. |
| Seventh-day Adventist | A Protestant denomination whose official beliefs affirm the Trinity and Jesus’ full divinity. Its distinctive teachings include the seventh-day Sabbath; it should not be grouped with Jehovah’s Witnesses on the Trinity. |
| Jehovah’s Witnesses | A movement whose members identify as Christian and whose teaching rejects the Trinity. This is a substantial disagreement with Nicene Christianity. |
| The Church of Jesus Christ of Latter-day Saints | Often called Mormon. Its members identify as Christian. Its teaching describes Father, Son, and Holy Ghost as three separate beings united in purpose, differing from the Nicene account of one divine being in three persons. |
Why do churches divide
Some divisions concern what counts as authority: Scripture, its interpretation, inherited tradition, councils, church teaching offices, or claims of further revelation. Others concern baptism, Communion, leadership, salvation, worship, and the application of moral teaching. People can read the same passage while disagreeing about its context or what other authorities should govern its interpretation.
Church identity also develops through language, migration, culture, and political circumstances. Some divisions involve ambition or resistance to correction. Others arise when people protest real abuses or exclusion. Calling every separation rebellion can protect wrongdoing; calling every separation reform can excuse it. Particular histories need particular evidence. No single motive explains every denomination.
The existence of different worship styles or languages does not by itself show a contradiction in belief. A disagreement about who Jesus is does. We should neither inflate every difference into a different gospel nor shrink every disagreement into personal taste.
Do they all say everyone else is lost
No. Believing that one’s church teaches something correctly is different from believing that only its registered members can be saved. Some traditions make strong claims to unique authority while also recognizing Christian faith outside their own institutional boundaries. For example, the Catholic decree Unitatis redintegratio recognizes baptized believers in other communities as fellow Christians, while maintaining Catholic claims about the fullness of church unity. That is more nuanced than saying it considers every non-Catholic simply outside Christianity.
We should ask each church what it actually teaches about other believers, salvation, and membership. We should also ask how leaders act toward people who leave. Official statements are evidence of the declared doctrine; they do not establish that every congregation or leader follows it.
How can a person assess the competing claims
Start with a specific question. Who is Jesus? What is the church’s account of salvation? What gives its leaders authority? What would count as evidence that an interpretation is mistaken? Compare the actual answers, using each community’s own teaching documents as well as serious criticism. A shared word such as grace, God, or gospel may carry different meanings.
When churches appeal to the Bible, compare their readings of whole passages, including the passages that make their case difficult. When they appeal to historical continuity or restored revelation, examine those claims too. Age, growth, confidence, emotional experience, or the number of members cannot establish that a teaching is true.
Also examine conduct: honesty, financial accountability, protection of vulnerable people, freedom to question, and willingness to correct leaders. Good conduct alone cannot prove every doctrine. Abusive conduct, however, is a serious reason to question a leadership’s demand for trust. A church should not use its claim to possess the truth as an exemption from accountability.
A person can make a reasoned commitment without pretending to have settled every controversy. Humility means explaining both the reasons for a conviction and what remains uncertain. It does not require saying contradictory claims are equally true.
The objection we still need to face
If God wants people to know the truth, why does the Holy Spirit allow sincere Christians to reach contradictory conclusions?
That is a serious challenge. The New Testament itself depicts disputes and correction: Paul confronts factional loyalty in 1 Corinthians 1, and Acts 15 describes a major controversy requiring deliberation. Christians commonly understand divine guidance as compatible with human misunderstanding and disobedience. Claiming the Spirit’s guidance is not the same as demonstrating that a particular conclusion is correct.
But human fallibility does not fully answer why God permits such persistent confusion, especially when leaders threaten people with eternal consequences for choosing wrongly. We should acknowledge that unresolved difficulty. It is reasonable for a skeptic to regard religious disagreement as a reason to scrutinize claims of clear, universally accessible guidance. Disagreement alone does not prove that God does not exist or that no Christian claim is true; it does challenge easy assurances that the right interpretation is always obvious.
Jesus’ prayer for unity in John 17 gives Christians a reason to take division seriously. It should not become pressure to remain under harmful leadership or to pretend that incompatible teachings agree. If a church asks for trust, it needs to show how it seeks truth, receives correction, and treats people who disagree.
Scripture and its use
John 17:20–23: Jesus prays for unity and connects it with the world’s response. 1 Corinthians 1:10–17 and 3:1–9: Paul challenges factions built around leaders. Acts 15:1–29: a disputed teaching prompts deliberation. Romans 14:1–12: believers are warned against contempt over disputed practices; this does not make every doctrinal question a matter of indifference. Acts 17:10–12 and 1 Thessalonians 5:19–22: examination accompanies openness. Matthew 7:15–23: claims and outward religious activity need scrutiny. These passages offer standards for Christian self-examination; quoting them does not independently prove Christianity true.
Seventh-day Adventist Church, official Fundamental Beliefs, especially beliefs 2, 4, and 20: https://adventist.org/beliefs . Jehovah’s Witnesses, Is God a Trinity?: https://www.jw.org/en/bible-teachings/questions/trinity/ . The Church of Jesus Christ of Latter-day Saints, Godhead: https://www.churchofjesuschrist.org/study/manual/gospel-topics/godhead?lang=eng . These are primary sources for the groups’ declared teaching, not independent proof of their religious claims.
United Methodist Church, Are all Methodist churches part of the UMC?: https://www.umc.org/en/content/ask-the-umc-are-all-methodist-churches-part-of-the-united-methodist-church . Orthodox Church in America, The Creed: https://www.oca.org/orthodoxy/prayers/symbol-of-faith . Second Vatican Council, Unitatis redintegratio, especially sections 1–4: https://www.vatican.va/archive/hist_councils/ii_vatican_council/documents/vat-ii_decree_19641121_unitatis-redintegratio_en.html . This is an introductory comparison, not an exhaustive account of internal diversity, historical divisions, or salvation teaching. No denomination count is used.
Read these passages in their surrounding chapters alongside the explanation.