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Catholic vs Protestant: Which One Follows the Bible?

An Honest Examination of Scripture, History, Authority, and Salvation

When Catholics and Protestants open the same Bible, why do they reach different conclusions about authority, salvation, the sacraments, and the Church? John Okparaeke examines the strongest claims on both sides through Scripture, original-language analysis, and early Christian history.

Digital eBookPhysical paperbackBy John Okparaeke

The central question

Does the Bible lead to the Protestant Reformation or to the Catholic Church?

For five hundred years, Catholics and Protestants have appealed to the same Scriptures while disagreeing about how Christian truth is known, who has authority to interpret disputed passages, and what the earliest believers actually practiced.

This book moves beyond slogans. It places the major claims side by side and asks which account best explains the biblical canon, apostolic authority, salvation, sacramental worship, and the continuity of the historic Church.

Inside the book

Six questions that shape the Catholic and Protestant divide

Where the Bible came from

Examine the early Christian canon, the 73-book Catholic Bible, and the historical decisions that produced the Protestant Old Testament.

Whether Sola Scriptura is biblical

Test the Bible Alone claim against Scripture's teaching about apostolic Tradition and the Church as the pillar and foundation of truth.

Faith alone and saving faith

Read Romans alongside James 2:24 and study the difference between attempts to earn salvation and faith working through love.

The Eucharist and the sacraments

Investigate the Real Presence, Baptismal Regeneration, and the sacramental beliefs found among the earliest Christians.

Peter, the keys, and the papacy

Trace the Davidic office in Isaiah 22 through Christ's promise to Peter in Matthew 16 and the witness of early Church history.

The secret rapture claim

Compare modern pre-tribulation teaching with Matthew 24, the historic Christian understanding of Christ's return, and the doctrine's modern origins.

How the evidence is tested

One question examined through four connected lenses

Scripture

Key passages are read in context, with attention to Greek and Hebrew terms rather than isolated proof texts.

History

The claims are compared with the early Church Fathers, ancient councils, and the documented development of Christian belief.

Authority

The book asks who can identify the biblical canon, interpret disputed texts, and preserve unity in the Church Christ founded.

Salvation

Grace, faith, works, baptism, perseverance, and the sacraments are examined as parts of one coherent biblical vision.

Who this is for

Written for readers willing to follow the evidence

Catholics seeking confidence

Understand the biblical and historical basis of Catholic teaching so you can explain the faith clearly and charitably.

Protestants investigating Catholicism

Encounter Catholic claims in their strongest form and compare them directly with Scripture and early Christian history.

Honest Christian seekers

Move beyond inherited assumptions and social media arguments toward a serious examination of the evidence.

Choose Your Preferred Edition

Digital eBook Edition

Get immediate access through Gumroad and begin the scriptural and historical examination on your preferred reading device.

Get the digital edition

Physical Paperback Edition

Order the printed book through The Great British Bookshop. BookVault handles printing and fulfilment.

Order the paperback

Do not settle for half the story

Examine the biblical texts, the historical record, and the competing claims for yourself. Discover which Christian tradition offers the most coherent account of Scripture, authority, salvation, and the apostolic Church.

Frequently Asked Questions

No. The book examines serious disagreements directly while treating Protestant readers and arguments with respect. Its purpose is to test competing claims through Scripture and history, not to attack individual Christians.

No. It works from biblical texts, original-language analysis, early Christian writings, ancient councils, historical evidence, and the major arguments used on both sides of the Catholic and Protestant divide.

The book addresses the biblical canon, Sola Scriptura, faith and works, salvation, the Eucharist, Baptism, the sacraments, Peter and the papacy, apostolic authority, and the secret pre-tribulation rapture claim.

It is written for Catholics who want to defend their faith, Protestants studying Catholic claims, converts and inquirers, Bible study groups, catechists, and readers seeking a structured comparison.

The digital edition is purchased and delivered through Gumroad, giving you immediate access after checkout.

The physical paperback is purchased through The Great British Bookshop and printed and fulfilled by BookVault. Paperback delivery, returns, replacements, and order support follow the retailer's policies.

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