Theology In Focus

Bible studies, church history, systematic theology, and Christian apologetics by Dr. Peter J. Carter, D.Min.

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Category: Church History

Discover the rich history of Christianity, from the early church fathers to the Reformation and modern era. Learn how historical events and figures have shaped the faith we practice today.

Why Vatican II Still Matters

Posted on December 23, 2025March 16, 2026 by Dr. Peter J. Carter

Vatican II reshaped Catholicism and launched the ecumenical movement. A Protestant historical analysis of the Council's strategic shift, internal divide, and lasting impact.

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The Reformation and the Five Solas: What the Reformers Recovered

Posted on December 20, 2025March 16, 2026 by Dr. Peter J. Carter

Discover the five solas of the Protestant Reformation: Sola Scriptura, Sola Fide, Sola Gratia, Solus Christus, and Soli Deo Gloria. Learn what they mean and why they still matter.

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The Council of Nicaea: When the Church Defined the Faith

Posted on December 17, 2025March 16, 2026 by Dr. Peter J. Carter

Explore the Council of Nicaea in 325 AD, the Arian controversy, the Nicene Creed, and why this pivotal moment in church history still matters for every Christian today.

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Protestant vs. Catholic Theology: The Structural Divide

Posted on December 16, 2025March 16, 2026 by Dr. Peter J. Carter

The Reformation divide is structural: justification as finished forensic declaration vs. ongoing sacramental process. Understanding why this difference changes everything.

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How East and West Shaped Christian Theology

Posted on December 11, 2025March 16, 2026 by Dr. Peter J. Carter

Eastern mysticism and Western legal clarity shaped two distinct theological traditions. Understand how these mindsets influenced Scripture, governance, and the East-West split.

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Nero and Paul: Power Fades, Character Remains

Posted on December 7, 2025March 16, 2026 by Dr. Peter J. Carter

Nero sat in judgment over Paul. Today men name dogs after Nero and sons after Paul. A study in how power fades while character endures across the centuries.

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The Early Church Councils: How Orthodoxy Was Defined

Posted on December 1, 2025March 16, 2026 by Dr. Peter J. Carter

From Nicaea to Chalcedon, the early church councils defined the core doctrines of the Christian faith. Their decisions still shape orthodoxy today.

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How Higher Criticism Sparked Liberalism and Fundamentalism

Posted on November 30, 2025March 16, 2026 by Dr. Peter J. Carter

Higher criticism of the late 1800s questioned the Bible's authorship and reliability, fueling liberal theology and provoking the fundamentalist response through Spurgeon's Downgrade Controversy and R. A. Torrey's The Fundamentals.

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About the Author

Dr. Peter J. Carter

Dr. Peter J. Carter is a theologian, author, and the founder of Theology in Focus. He holds a D.Min. with a concentration in theology and apologetics and has spent over two decades teaching, preaching, and writing to make theology accessible to every believer.

His work bridges the gap between the academy and the church, bringing rigorous scholarship to the service of faith. He is the author of several books on systematic theology and church history.

Learn more about Dr. Carter

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  3. Laura Simmons on Three Christian Views of Hell
  4. Robert J. Maxwell on Sola Scriptura: The Final Court of Appeal
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  • Featured image for The Discipline of Studying Church History Honestly - Theology in Focus
    The Discipline of Studying Church History HonestlyMarch 16, 2026
  • Featured image for The Imago Dei: Why Human Life Has Unique Value - Theology in Focus
    The Imago Dei: Why Human Life Has Unique ValueMarch 10, 2026
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    Pre-Reformers, Reformers, and the Social Transformation of Late Medieval EuropeFebruary 20, 2026
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    The Examined Life: Socrates, Classical Education, and the Birth of the Western MindFebruary 18, 2026
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    Christianity Is Not a Merit SystemFebruary 17, 2026

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