Can You Really Trust the Bible?

It is the world's most widely distributed book. It has shaped civilisations, transformed lives, and stood at the centre of the Christian faith for two thousand years. And yet the question pressing on millions of people — believers and sceptics alike — remains: Can we actually trust it?

Is the Bible historically reliable? Has it been corrupted over centuries of copying and translation? Did the church simply decide what belonged in it? And if it really is God's Word — how would we even know?

Why Trust the Bible? by Greg Gilbert takes these questions head-on. Written with the same clarity, accessibility, and intellectual honesty that made What Is the Gospel? and Who Is Jesus? so widely used, this short book provides both the historical and theological arguments that have helped Christians across the centuries — and continue to help them today — to place their confidence in Scripture from Genesis to Revelation.

For the Doubter, the Seeker, and the Long-Time Believer

One of the great strengths of this book is the breadth of its intended audience. Gilbert writes for the non-Christian who finds the Bible's claimed authority puzzling or unconvincing. He writes for the new believer who has embraced the faith but feels uncertain how to answer hard questions about Scripture. And he writes for the long-time Christian who has trusted the Bible for years but has never quite worked out why — and who struggles to articulate that trust when challenged.

In all three cases, Gilbert's approach is the same: patient, honest, and genuinely engaging. He does not dismiss the hard questions. He works through them, one by one, with care.

Completing the Trilogy

Why Trust the Bible? is the natural third volume in Greg Gilbert's accessible and widely-used trilogy of short 9Marks books for seekers and new believers:

What Is the Gospel? — the heart of the Christian message
Who Is Jesus? — the identity, claims, and significance of Christ
Why Trust the Bible? — the reliability and authority of God's Word

Together, these three volumes provide a complete, readable, and biblically grounded introduction to the foundational questions of the Christian faith. They work powerfully as a set for evangelism, enquirers' groups, or new believers' discipleship — and each stands alone as an equally useful standalone resource.

What This Book Covers

Why the question of the Bible's trustworthiness matters — and cannot be avoided
The historical reliability of the Bible — how we know the text we have is accurate
How the canon was formed — why these books and not others
The theological argument for Scripture's authority — why Christians believe the Bible is God's Word
Common objections to the Bible's reliability — addressed honestly and clearly
What it means to say the Bible is inspired and authoritative — and what the implications are
How the Bible holds together from Genesis to Revelation as a unified, coherent witness to God's purposes
How to articulate your trust in the Bible when challenged by sceptical friends, colleagues, or family members

What Readers Will Learn

The key historical and theological reasons for trusting the Bible as God's reliable Word
How to respond to common objections about the Bible's transmission, translation, and canon
Why the process by which the Bible was compiled and preserved is historically credible
What the Bible claims about its own nature — and why that claim is coherent, not circular
How to hold together intellectual confidence in Scripture and genuine, living faith
How to explain your trust in the Bible clearly and winsome to a sceptical friend or family member
Why Christians across two thousand years and every culture have found the Bible trustworthy — and why that matters

Who Should Read This Book

Non-Christians who are genuinely curious about whether the Bible can be taken seriously
New believers wanting a solid foundation for their confidence in Scripture
Long-time Christians who trust the Bible but have never worked out how to explain why
Pastors and church workers wanting a reliable resource for apologetics conversations
Church members who regularly face questions about the Bible's reliability from unbelieving friends or family
Students and young adults navigating university contexts where the Bible's authority is routinely challenged
Churches in India running evangelism courses, enquirers' groups, or new believers' discipleship programmes
Anyone who has ever been asked — or asked themselves — Why should I trust the Bible?

What Endorsers Are Saying

"Greg Gilbert, with brilliant mind and pastoral heart, unpacks that question step by step with both insight and accessibility. There is no more important question in the cosmos than the ones he addresses." — Endorsement of the Gilbert trilogy

"Greg's greatest asset is his ability to make profound things simple." — J.D. Greear, Pastor, The Summit Church

About the Author

Greg Gilbert (MDiv, The Southern Baptist Theological Seminary) is the senior pastor of Third Avenue Baptist Church in Louisville, Kentucky. He is the author of the widely-read What Is the Gospel?, Who Is Jesus?, and James: A 12-Week Study, and is co-author of What Is the Mission of the Church? His writing is published through 9Marks and Crossway and is trusted by pastors, evangelists, and church leaders worldwide for its combination of biblical faithfulness, intellectual rigour, and genuine accessibility. Gilbert is known for making difficult theological questions understandable without flattening their depth — a gift that makes all three of his foundational books essential tools for evangelism and discipleship alike.

About the 9Marks Series

Why Trust the Bible? is part of the 9Marks family of resources published with Crossway — a library of short, focused books on the marks and foundations of a healthy, gospel-centred church. 9Marks resources are widely used in pastoral training, church planting, new believers' discipleship, and evangelism across the world, including a growing readership in India and South Asia.