Answer: It depends on the type of Christian you ask.

Theological Traditions Included: Catholic, Eastern Orthodox, Non-Calvinist Protestant, Calvinist Protestant, Progressive

All five traditions affirm the importance and authority of Scripture, but they differ in their understanding of its relationship to other sources of authority, such as Tradition and contemporary contexts.
Calvinist and Non-Calvinist Protestants emphasize the supreme authority of the Bible, while Catholics and Eastern Orthodox churches believe in the unity of Scripture and Tradition. Progressive Christians acknowledge the authority of Scripture but emphasize the need for contextual interpretation.
There are differences in the understanding of salvation and grace, with Protestants generally emphasizing justification by faith alone, Catholics and Eastern Orthodox churches affirming the importance of faith and works, and Progressive Christians focusing on the inclusive and liberating nature of God's grace.
The traditions also differ in their views of the Church and sacraments, with Catholics and Eastern Orthodox churches having a high view of the visible Church and sacraments as means of grace, while Protestants emphasize the invisible Church and the priesthood of all believers. Progressive Christians may have a more flexible view of church structures and practices.
Ultimately, each tradition claims to be the most faithful to Scripture based on their particular interpretations and emphases, making it difficult to determine a single "most biblical" denomination. The question highlights the diversity of Christian thought and the ongoing need for dialogue and discernment within the Church.

For most of my life, Christianity and my denomination were one thing. Somehow the obvious diversity wasn’t clearly communicated to me.

Justin Bailey – Creator of ChristianAnswers.ai

Quick Comparison

Tradition	Authority of Scripture	Salvation and Grace	Church and Sacraments
Calvinist Protestant	Supreme authority	Predestination, justification by faith alone	Invisible Church, priesthood of all believers
Catholic	Unity with Tradition	Faith and works, synergy with grace	Visible Church, sacraments as means of grace
Non-Calvinist Protestant	Supreme authority	Salvation by grace through faith alone	Invisible Church, priesthood of all believers
Eastern Orthodox	Unity with Tradition	Faith and works, synergy with grace	Visible Church, sacraments as means of grace
Progressive	Interpreted in context	Inclusive and liberating grace	Flexible structures, emphasis on inclusivity

Hear from Each Perspective

Ordered by number of adherents

John / Catholic

The Catholic Church is the most biblical denomination because we trace our roots back to the apostles and the early Church, which were founded on the teachings of Christ and the authority of Scripture. We believe in the unity of Scripture and Tradition, recognizing that the Bible must be interpreted within the living context of the Church. Our doctrines, such as the real presence of Christ in the Eucharist, the sacrificial nature of the Mass, and the authority of the Pope and bishops, are all grounded in biblical principles and the apostolic tradition. We also affirm the importance of faith and works, as taught by James and other biblical writers, and we practice the sacraments as means of receiving God's grace and growing in holiness.

Anthony / Eastern Orthodox

The Eastern Orthodox Church is the most biblical denomination because we have faithfully preserved the teachings and practices of the early Church, which were grounded in the apostolic tradition and the Scripture. Our understanding of the Trinity, Christology, and salvation is deeply rooted in the Bible and the teachings of the Church Fathers. We believe in the real presence of Christ in the Eucharist, as Jesus taught in John 6, and we practice the sacraments as means of receiving God's grace, in accordance with biblical principles. Our emphasis on the unity of Scripture and Tradition, the importance of the Church as the Body of Christ, and the centrality of worship and prayer all have strong biblical foundations.

Caleb / Non-Calvinist Protestant

Our denomination is the most biblical because we prioritize the authority of Scripture and the centrality of personal faith in Jesus Christ. We believe in salvation by grace through faith alone, as clearly taught in the Bible, and we practice believer's baptism, which is the model we see in the New Testament. Our emphasis on the priesthood of all believers and the importance of individual Bible study and interpretation aligns closely with the biblical narrative. While we respect the traditions of the Church, we believe that the Bible alone should be our ultimate guide for faith and practice.

Nathan / Calvinist Protestant

Our denomination is the most biblical because we hold to the fundamental principles of the Reformation, which sought to recover the pure teaching of Scripture. We affirm the supreme authority of the Bible, the sovereignty of God in salvation, and the centrality of Christ's atoning work on the cross. Our doctrines, such as predestination, total depravity, and justification by faith alone, are all clearly taught in the writings of Paul and other biblical authors. We also emphasize the importance of preaching and teaching the Word of God, as well as the need for personal conversion and discipleship. While we respect the traditions of the Church, we believe that they must always be subject to the final authority of Scripture.

Hannah / Progressive

I believe that the question of which denomination is the most biblical is misguided, as it assumes that there is only one correct way to interpret and apply Scripture. Progressive Christians recognize that the Bible is a complex and diverse collection of writings, reflecting the cultural and historical contexts in which it was produced. We believe that the essence of the biblical message is God's love and liberation, revealed most fully in the life and teachings of Jesus Christ. Rather than focusing on doctrinal or denominational differences, we emphasize the importance of living out the biblical principles of love, justice, and inclusion in our contemporary context. We believe that the Spirit continues to guide the Church in interpreting and applying Scripture in fresh ways, as we seek to be faithful to God's ongoing work in the world.

The Key Differences

1. Authority of Scripture

All five traditions affirm the importance and authority of Scripture, but they differ in their understanding of its relationship to other sources of authority.
Calvinist and Non-Calvinist Protestants emphasize the supreme authority of the Bible, believing that it alone should be the ultimate guide for faith and practice.
Catholics and Eastern Orthodox churches believe in the unity of Scripture and Tradition, recognizing that the Bible must be interpreted within the living context of the Church.
Progressive Christians acknowledge the authority of Scripture but emphasize the need to interpret it in light of contemporary contexts and the ongoing guidance of the Spirit.

2. Salvation and Grace

Calvinist Protestants emphasize the sovereignty of God in salvation, affirming the doctrines of predestination and justification by faith alone.
Non-Calvinist Protestants also believe in salvation by grace through faith alone but may have a different understanding of predestination and the role of human free will.
Catholics and Eastern Orthodox churches affirm the importance of faith and works, believing that salvation involves a synergy between God's grace and human cooperation.
Progressive Christians emphasize the inclusive and liberating nature of God's grace, often focusing more on the social and ethical dimensions of salvation.

3. Church and Sacraments

Catholics and Eastern Orthodox churches have a high view of the Church as the Body of Christ and the sacraments as means of receiving God's grace.
Calvinist and Non-Calvinist Protestants emphasize the importance of the invisible Church and the priesthood of all believers, with some differences in their understanding of the sacraments.
Progressive Christians may have a more flexible view of church structures and sacramental practices, emphasizing the importance of inclusivity and social justice.

Which Christian denomination is the most biblical?