What defines an interdenominational church?

Meaning and Core Concept

An interdenominational church brings together believers from multiple denominational backgrounds to worship, serve, and grow in faith together. Rather than remaining confined to one specific tradition―such as Baptist, Methodist, Presbyterian, or others―it seeks to include those who affirm the core doctrines taught in Scripture (Ephesians 4:4–6). This unity is grounded in essential beliefs about God, salvation through Christ, and the authority of the Bible. While denominational nuances can be valued, interdenominational congregations focus on shared identity in the Messiah and the call to be “one,” as prayed by Jesus (John 17:21).

Biblical Basis for Unity

Jesus’ prayer for oneness (John 17:20–21) underscores the biblical desire for believers to exhibit a united testimony. Paul’s letters also speak of “one body and one Spirit” (Ephesians 4:4–6), emphasizing that Christ’s followers belong to a universal fellowship not bound solely by denominational distinctions. This concept of unity does not dismiss doctrinal convictions; rather, it upholds essential truths such as the deity of Christ, the resurrection (1 Corinthians 15:3–4), salvation by grace (Ephesians 2:8–9), and the inerrant, authoritative word of God (2 Timothy 3:16).

Historical Context and Practical Emergence

From the earliest centuries of the church, diverse backgrounds and cultural contexts were integrated into one fellowship (Acts 2:5–11). Over history, denominations formed to address theological and practical differences (e.g., modes of baptism, church polity, etc.). Interdenominational churches arose in response to the desire for a broader unity that still honors core gospel truths. The repeated emphasis on believers being “of one mind” (Philippians 2:2) provided biblical impetus for gatherings where central doctrines are lifted above less critical areas of disagreement.

Essential Doctrines Held in Common

Interdenominational churches typically define their unity based on what many refer to as “closed-hand” issues—nonnegotiable doctrines revealed in Scripture:

• Belief in one God, eternally existent in three Persons.

• The full divinity and humanity of Jesus Christ, including His virgin birth, substantiated by Scripture (Matthew 1:23) and corroborated by early manuscripts such as those reflected in the Dead Sea Scrolls and subsequent manuscript discoveries.

• The bodily resurrection of Christ, an event upheld by historical testimony (1 Corinthians 15:3–8) and supported by eyewitness accounts recorded in the earliest Christian documents.

• Salvation through faith in Christ alone (John 14:6), highlighting humanity’s need for redemptive atonement.

• The inspiration and trustworthiness of Scripture. Archaeological finds (e.g., fragments of the New Testament that date back to the early centuries) and vast manuscript evidence highlight its reliability.

Other theological aspects, sometimes referred to as “open-hand” issues (the finer points of eschatology, church structure, preference for certain worship styles), may vary among attendees but rarely divide people in interdenominational settings.

Approach to Denominational Distinctions

While honoring differences, interdenominational churches prioritize shared foundations:

1. Respect for Diverse Traditions: Believers are welcomed regardless of denominational background, with an appreciation for liturgical richness or free-form worship styles.

2. Focus on Core Teachings: Leaders center preaching and teaching on those essentials that unite all genuine followers of Christ—His deity, salvation through His name, and Scripture as final authority.

3. Cooperative Ministry: In outreach and discipleship, these churches collaborate across denominational lines, reflecting biblical calls to “spur one another on toward love and good deeds” (Hebrews 10:24).

Community and Spiritual Practices

Interdenominational congregations often practice:

• Shared Worship: Services can blend hymns, contemporary worship music, and culturally diverse expressions of praise.

• Prayer and Evangelism: Community prayer gatherings and evangelistic efforts unite believers in proclaiming the gospel, exemplifying biblical unity.

• Biblical Instruction: Teaching typically emphasizes Scripture’s authority, drawing from Old and New Testament passages to nurture both doctrinal understanding and practical application.

Addressing Concerns and Misconceptions

Some argue that interdenominational churches lack doctrinal rigor. However, healthy interdenominational fellowships clarify doctrinal statements that align with Scripture, ensuring congregants are well-grounded in biblical truth. Leaders often lean on the historically cohesive biblical text—strengthened by manuscript evidence such as Codex Sinaiticus and other early documents—which consistently attest to the gospel message and the reliability of the Christian faith.

Interdenominationalism also is sometimes presented as a modern innovation. Yet the example of the early church in Acts (Acts 15:1–31) illustrates how believers navigated differences by holding to what the apostles deemed foundational truths. Modern interdenominational churches simply apply this principle broadly, inviting all who confess Christ to unite in worship and mission.

Importance of Scriptural Authority

Scriptural authority serves as the anchor for any interdenominational framework. When questions arise—whether they involve the nature of God, the life and resurrection of Christ, or moral and ethical concerns—believers turn to the Bible for definitive answers. Through centuries of meticulous copying and preservation (as evidenced by numerous archaeological finds and manuscript comparisons), Scripture remains consistent and authoritative (Isaiah 40:8). This unwavering scriptural foundation ultimately guards against doctrinal drift.

Role in Fulfilling the Great Commission

Interdenominational churches often underscore a shared commitment to missions and evangelism (Matthew 28:19–20). By forging unity across denominational lines, they can pool resources, talents, and spiritual gifts. This collaboration reflects the spiritual reality of one body (Romans 12:4–5), enabling more effective outreach at both local and global levels. Cooperation also embodies Jesus’ teaching that love and unity are integral to the Christian witness (John 13:34–35).

Contemporary Significance and Growth

As society becomes more interconnected, many believers find interdenominational churches appealing for their emphasis on the fundamental truths that bind followers of Christ worldwide. The growth of these congregations can be seen in their capacity to traverse cultural and denominational barriers, reflecting what Jesus Himself established—a community of faith that transcends outward distinctions in order to glorify God (Romans 15:5–6).

Conclusion

Interdenominational churches are defined by their commitment to unifying believers around the essential truths of the Christian faith, while acknowledging and respecting secondary differences. This approach stands on a solid biblical foundation, embracing the scriptural call for harmony and for upholding central doctrines such as the deity of Christ, His resurrection, and the message of salvation. Through consistent reliance on the authoritative Word, interdenominational fellowships endeavor to fulfill the Great Commission, demonstrate mutual love, and reflect the prayer of Jesus that all His followers might be “one” (John 17:21).