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

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Category: Reformation (16th Century)

Examine the Protestant Reformation and its impact on Christianity. Study the lives and teachings of reformers like Luther, Calvin, and Zwingli, and the birth of Protestant traditions.

Why Christianity Has So Many Doctrinal Divisions

Posted on January 5, 2026March 16, 2026 by Dr. Peter J. Carter

Christianity's thousands of denominations are not evidence of biblical confusion but of an unfinished Reformation. Understand the historical process that produced today's doctrinal landscape.

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Sola Scriptura: The Final Court of Appeal

Posted on January 2, 2026March 16, 2026 by Dr. Peter J. Carter

Every Christian operates from a final authority: church tradition, personal feelings, or Scripture. Only one is the ultimate court of appeal. A strongly Reformed defense of Sola Scriptura.

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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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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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Why Scotland Embraced the Reformation So Quickly

Posted on November 21, 2025March 16, 2026 by Dr. Peter J. Carter

Scotland's rapid embrace of the Reformation was no accident. Celtic Christianity had planted deep instincts for local governance and scriptural authority that made John Knox's Reformed teaching feel like a homecoming.

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The Pre-Reformers: Forgotten Voices before Luther

Posted on November 19, 2025March 16, 2026 by Dr. Peter J. Carter

Before Martin Luther, men like Peter Waldo, Peter de Bruys, John Wycliffe, and Jan Hus challenged the medieval church and called for biblical authority -- and paid dearly for it.

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Where Did the Baptist Church Come From?

Posted on November 18, 2025March 16, 2026 by Dr. Peter J. Carter

Trace the Baptist tradition from its roots in the English Reformation through Puritan Separatism, John Smyth, Thomas Helwys, and the rise of believer's baptism and congregational self-governance.

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Catholics vs. Anglicans: The Real Difference

Posted on November 18, 2025March 16, 2026 by Dr. Peter J. Carter

The Anglican break from Rome began as a political act, not a theological one. Discover how Henry VIII's power struggle produced a church caught between Catholic heritage and Protestant reform.

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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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  4. Robert J. Maxwell on Sola Scriptura: The Final Court of Appeal
  5. Catherine Walsh on Two-Track Diffusion of Christian Doctrine
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    The Discipline of Studying Church History HonestlyMarch 16, 2026
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    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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