A Bold, Biblical, and Compassionate Response to Islam

In Grace and Truth: Paul, the Gospel, and the Challenge of Islam, author and theologian Tim Orr delivers a powerful new resource for Christians seeking to faithfully engage Muslims with the gospel of Jesus Christ. This groundbreaking book goes beyond traditional apologetics to engage deeply with the theological core of Islam. Instead, it wrestles deeply with the theological core of Islam and offers a rich, Pauline vision of gospel witness that is both uncompromising and grace-filled.

Structured around four pivotal questions—What is the human problem? What has God done? How do we bear witness without compromise? And what are we up against?—this book draws readers into the heart of Paul’s theology and applies it to one of the greatest missional challenges of our time.

What You'll Discover:

A Theological Foundation: Contrast biblical views of sin, human nature, and revelation with Islamic understandings of fitrah, guidance, and the role of prophets.

The Power of the Gospel: Explore why Paul’s gospel of grace and the cross is fundamentally different from Islam’s emphasis on human effort in salvation—and why that matters.

Practical Mission Strategies: Learn from Paul’s engagement in Athens (Acts 17) to develop a contextualized, faithful approach to ministry among Muslims today.

Spiritual Realism: Understand the deeper spiritual dynamics at play, including spiritual warfare, resilience, and gospel perseverance in the face of resistance.

With scholarly depth and pastoral clarity, Dr. Orr tackles hard questions while equipping readers with the tools to communicate the gospel in a Muslim context—without diluting its truth or neglecting its beauty. Combining real-world ministry stories, exegetical insight, and clear-eyed cultural analysis, Dr. Orr offers a must-read for pastors, missionaries, and thoughtful Christians alike.

Whether you're new to Muslim ministry or a seasoned apologist, Grace and Truth will sharpen your theology, deepen your love for the gospel, and inspire fresh courage in your witness.

Truth without grace is harsh. Grace without truth is hollow. But grace and truth together? That’s the way of Christ—and the way forward in engaging Islam.