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Christianity AtlasChurch & Denomination Guide

About this guide

How the guide works

Reformed Baptist Base Beliefs

How this guide compares groups

Christianity Atlas uses a broad Reformed Baptist reference point: conservative evangelical Protestant, Nicene, Reformed in salvation, committed to believer’s baptism, and organized around autonomous congregational churches. Historic Baptist confessions—especially the 1689 Second London Confession—summarize this benchmark beneath Scripture without requiring one exact form of subscription.

What the guide starts with

Historic family
Protestant
Evangelical identity
Conservative evangelical
Reference family
Reformed Baptist
God
The one God is eternally Father, Son, and Holy Spirit
Jesus Christ
The eternal Son, fully divine and fully human
Scripture
Final and supreme written authority; Baptist confessions are subordinate
Gospel
Personal conversion; Christ’s atoning death and bodily resurrection
Justification
By grace through faith alone in Christ
Soteriology
Reformed; strong divine sovereignty
Communion
Spiritual reception of Christ by faith; not a sacrifice
Baptism
Believer’s baptism
Polity
Autonomous congregational church order

Where Reformed Baptist churches vary

These are not absences of conviction. Historic Reformed Baptist confessions address them, but churches differ in their detailed formulation or practice. The guide does not assume one modern variation, so they do not affect the comparison.

  • Cessationism, continuationism, or a cautious-open position
  • The detailed covenant-theology formulation and its local application
  • The exact relationship between elders and congregation, including detailed ministry-office boundaries
  • The exact degree of confessional subscription
  • Millennial and rapture positions
  • The detailed relationship between Israel and the church

How Westminster relates to the 1689 Confession

They are close relatives within the Reformed tradition, but they are not interchangeable and Westminster is not the guide’s Baptist standard.

Westminster Confession (1646)

A foundational Reformed and Presbyterian confession. It teaches infant baptism and a connectional church order in which presbyteries and synods have church authority.

Second London Baptist Confession (1677/1689)

A Baptist confession that deliberately follows much of Westminster’s order and wording while affirming professing believers’ baptism and autonomous congregational church government.

That relationship explains two results: broad Reformed Theology remains Very close because Reformed Baptists belong within that tradition, while a specific Westminster Presbyterian church can be Close because its baptism and polity are definite—not merely internal variation within that church body.

Why the Nicene Creed sets the historic boundary

The Reformed Baptist reference beliefs stand within historic Nicene Christianity. The guide still uses the Nicene core—not a Baptist confession—as its cross-tradition boundary because that core gives precise language about Jesus and the Trinity.

Apostles’ Creed: a concise Christian story

It names Jesus as God’s Son and Lord and summarizes his incarnation, death, resurrection, return, the Holy Spirit, the church, forgiveness, and eternal life. Its Trinitarian shape is important, but brief.

Nicene Creed: a more precise doctrinal test

It makes explicit that the Son is eternal, uncreated, and fully God—not an exalted creature—and speaks more fully about the Holy Spirit. That precision directly addresses the guide’s boundary questions.

The guide examines official doctrine, not whether a group recites either creed. A group can use words from the Apostles’ Creed while defining the Son or the Godhead differently, so the more explicit Nicene core is the clearer classification standard.

Neither creed is a complete Protestant statement of faith. Biblical authority, justification, the atonement, baptism, Communion, and other important differences are compared separately after the historic boundary is identified.

Read the full historic-boundary guide

Choosing sources

Which sources come first

The guide first uses sources a group recognizes to explain its position, then adds historical context and comparison.

  1. Ancient creed or official confessional standard

    Establish foundational language and the tradition’s binding or inherited standards.

  2. Current official doctrine page

    Describe what a denomination or organization presently says about itself.

  3. Official constitution, catechism, or policy

    Clarify governance, doctrine, sacraments, and formal practice.

  4. Peer-reviewed scholarship or established academic reference

    Supply historical context, terminology, and evidence beyond institutional public relations.

  5. High-quality external analysis or published dialogue

    Document disputes, critiques, and reassessments with provenance.

  6. The guide’s comparison

    Add the guide’s assessment last and label it clearly.

Compared with the guide

How each group is compared with the guide

The guide compares a group’s official or typical teaching with its stated Reformed Baptist base beliefs. It does not calculate a percentage or add points to choose the default result.

  1. Identify whether the record is a communion, denomination, family, movement, network, structural label, or new religious movement.
  2. Determine whether official teaching is inside, outside, varies within the group, or has a disputed classification at the historic Nicene boundary.
  3. Treat the Trinity and the full deity and humanity of Christ as boundary gates. Minor similarities cannot average away a boundary difference.
  4. For inside-Nicene entities, compare only dimensions known for both sides. Scripture, the gospel, and justification come before denominational vocabulary; a Lutheran or Wesleyan formulation that preserves the same core claim is shown as qualified agreement, not contradiction.
  5. Consider soteriology and sacramental theology next. Treat believer’s baptism as a stated but lower-weight church-forming doctrine, and treat polity or administrative structure as still lower. Administration alone cannot push a group into a more distant result.
  6. Topics that vary among Reformed Baptist churches have no default influence; an optional local selection is shown only as an exploratory result.
  7. Use a source-backed band stored with the group record; weight totals organize evidence but do not generate the band or a similarity percentage.
  8. Let optional local refinements move only Very close to Close, or Close to Substantial differences, when the selected position creates a documented difference.
  9. Show Needs a closer look only when a broad label or evidence gap could materially reverse the answer; do not withhold a useful mainstream conclusion merely because exceptions exist.
  10. Explain the result in plain language, show dimension-level evidence, and link the supporting sources.

The six comparison results

Very close

Strong alignment on the known weighted fields, without a known church-dividing difference; internal variation is not treated as disagreement.

Close with important differences

The same historic Protestant Scripture–gospel–justification core, with important differences in soteriology, sacraments, baptism, or church practice.

Shared historic core, with several important differences

A shared historic Christian core, but an actual substantial difference in authority, gospel, justification, or another foundational theological area—not merely administration or local style.

Shared Nicene beliefs, with major differences

Inside the Nicene boundary, but with foundational differences in authority, justification, sacraments, or visible-church claims.

Needs a closer look

This label is too broad or disputed for one clear result. Check the specific group or the explanation on this page.

Outside historic Nicene Christianity

Official doctrine rejects or replaces a central Nicene teaching; the page must state the precise reason.

Corrections

Suggest a correction

Use the feedback button in the top right corner of every page. Reports are stored privately as possible input for a future repository update and never change published content automatically.

Suggest a correction

  • The exact affected page or record
  • The claim that appears inaccurate, incomplete, or unclear
  • A concise suggested correction
  • A direct source URL—preferably an official, primary, or scholarly source
  • Optional contact information

Sources

Sources used by this guide

Each source shows when it was checked. “Needs verification” means a URL, title, edition, or current detail still needs confirmation.

229

sources

Official and self-description sourcesUsed first for a body’s own doctrine, identity, or practice.171
Historic primary textsCreeds, confessions, liturgies, and historical works used with edition and context.19
Academic, external, and dialogue sourcesUsed for history, disputed classification, terminology, and reassessment.39