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In "The Thomas Factor," Gary R. Habermas presents a transformative exploration of religious doubt and its potential as a catalyst for spiritual growth. This insightful book delves into the often misunderstood territory of doubt, revealing how it can be harnessed as a powerful tool for deepening one's faith and drawing closer to God. Habermas, with his extensive experience and empathetic approach, offers a lifeline to believers struggling with uncertainties in their spiritual journey.

At the heart of the book is the dissection of three types of doubt: factual, emotional, and volitional. Habermas, through his own experiences and those of the individuals he has counseled, demonstrates that doubts are not a sign of weak faith but rather an opportunity for profound personal growth. He skillfully navigates the reader through the complexities of each doubt type, providing practical strategies for overcoming them.

The book is enriched with examples from both the Old and New Testaments, showcasing that doubt has been a constant companion of even the most steadfast believers throughout history. In debunking common myths about doubting, Habermas sets the stage for building a resilient foundation for faith.

Practical chapters guide the reader in developing a tailored strategy to address their doubts. This includes disciplines like prayer, Scripture memorization, journaling, and practicing Christian behavior. Habermas emphasizes that working through doubts is not just an intellectual exercise but involves the whole person — emotions, will, and intellect.

"The Thomas Factor" does not shy away from the tougher aspects of theological inquiry. It addresses why theological differences exist and how to live with unanswered questions, thus equipping the reader to navigate the diverse landscape of Christian thought.

Habermas concludes with a thoughtful discussion on the negative and positive consequences of doubt. He illustrates how doubt, when approached correctly, can lead to a stronger, more authentic faith, likening the process to refining gold.

This book is an invaluable resource for anyone grappling with doubts about their faith. It offers not only solace and understanding but also practical tools for turning doubt into a stepping stone towards a more intimate and robust relationship with God.

Target Audience:

"The Thomas Factor" is ideal for Christians at any stage of their faith journey, particularly those wrestling with doubts or seeking a deeper understanding of their beliefs. It is also a valuable resource for pastors, counselors, and lay leaders who provide spiritual guidance and support.



  • Publisher: ‎ Christian Publishing House (December 7, 2023)
  • Language: ‎ English
  • Paperback: ‎ 135 pages
  • ISBN-13: ‎ 979-8871066102
  • Item Weight: ‎ 9.3 ounces
  • Dimensions: ‎ 6 x 0.31 x 9 inches



Dr. Gary R. Habermas is Distinguished Research Professor and chair of the Department of Philosophy at Liberty University. He also teaches in the Ph.D. program in theology and apologetics at Liberty Baptist Theological Seminary. He earned the Ph.D. at Michigan State University and the M.A. from the University of Detroit.


He has authored, coauthored, or edited thirty-nine books and contributed more than sixty-five chapters or articles to other books. He has also written well over one hundred articles and reviews for journals and other publications. While his chief areas of research (and the topic of twenty of his books) are issues related to Jesus' resurrection, he has also published frequently on the afterlife, near death experiences, as well as the subjects of suffering and religious doubt.


Over the past fourteen years, he has often been a visiting or adjunct professor, having taught courses at some fifteen different graduate schools and seminaries in the United States and abroad. He and his wife, Eileen, have seven children and thirteen grandchildren, all of whom live in Lynchburg, Virginia.

THE THOMAS FACTOR: Using Your Doubts to Draw Closer to God

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