Unashamed Truth

In this episode of the Unashamed Truth Podcast, Grant Castleberry is joined by Dr. John Tweeddale, Vice President and Professor of Theology at Reformation Bible College, to explore the remarkable life and ministry of James Montgomery Boice. Though often overlooked today, Boice helped shape modern Reformed evangelicalism through his unwavering commitment to biblical authority, expository preaching, and confessional theology.
Together they discuss Boice's ministry at Tenth Presbyterian Church, his influence on leaders such as R.C. Sproul, John MacArthur, John Piper, and Tim Keller, his leadership in the Chicago Statement on Biblical Inerrancy, and his role in founding the Philadelphia Conference on Reformed Theology. Along the way, they reflect on Boice's preaching, his passion for mentoring younger pastors, and why his example remains so needed for the church today.
Whether you're a pastor, ministry leader, or simply want to learn from one of the most influential yet underappreciated figures of the twentieth century, this conversation will encourage you to stand firmly on the authority of God's Word and faithfully proclaim Christ to the next generation. 
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What does true repentance really look like? Is repentance simply something that happens at conversion, or is it the pattern of the entire Christian life?
In this episode, Grant Castleberry is joined by theologian and pastor Harrison Perkins to discuss the biblical doctrine of repentance. Together they explore the relationship between repentance and faith, why repentance is a gracious gift rather than a burden, how Christians fight ongoing sin, and why the Reformers and Puritans considered repentance essential to spiritual growth. Drawing from Scripture, church history, and pastoral ministry, this conversation offers practical encouragement for every believer seeking to follow Christ with greater holiness and hope.
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Why are so many young men returning to church today? In this episode of the Unashamed Truth Podcast, Grant Castleberry examines Paul's powerful exhortation in Titus 2:6: "Urge the younger men to be self-controlled."
What is biblical self-control? Why is it essential for spiritual growth, leadership, and perseverance? And how does the gospel empower believers to overcome temptation and pursue lasting joy in Christ?
Join us as we explore the biblical foundation of self-discipline and why self-control is one of the most important virtues a young man can cultivate.
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In this episode of the Unashamed Truth Podcast, Grant Castleberry sits down with Jonny Ardavanis, pastor of Stonebridge Bible Church and founder of Dial In Ministries. Jonny shares his testimony, his journey into pastoral ministry, and the influences that shaped his life and theology.
Together, they discuss expository preaching, the sovereignty of God, reaching Gen Z with biblical truth, the growing interest in Catholicism among young evangelicals, and why depth, not entertainment, is what the next generation is truly seeking.
If you're passionate about faithful ministry, Reformed theology, and the power of God's Word, this conversation will encourage and challenge you.
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How should Christians think about PTSD, trauma, and mental health?
In this episode, Dr. Grant Castleberry sits down with Dr. Greg Gifford, Associate Professor of Biblical Counseling at The Master's University, to discuss the sufficiency of Scripture for life's deepest struggles.
Drawing from their shared military backgrounds, Grant and Greg explore PTSD, trauma, suffering, mental health, and the vital differences between biblical counseling and modern therapeutic approaches. They discuss how the gospel provides hope for those facing fear, guilt, anxiety, and life's most difficult trials.
If you've ever wondered whether God's Word is truly sufficient to help people navigate trauma and suffering, this conversation is for you.
Resources Mentioned:
Lies My Therapist Told Me
Helping Your Family Through PTSD
Transformed Podcast
BiblicalCounseling.com
You can watch this episode on our YouTube Channel.