Church History Series

Do the differences between Catholicism and Protestant Christianity really matter? In Leaving Catholicism, Rev. Gerald Haug draws from his experience as a former Catholic to examine key Roman Catholic doctrines through the lens of Scripture, church history, the early church fathers, and official Catholic teaching. You’ll gain a clearer understanding of where Catholic and Protestant beliefs differ, how those differences developed, and why they matter for how you understand the Christian faith.

How did the Christian church become what it is today? Unholy Christianity takes you on a candid journey from the age of the apostles through the Medieval Church, the Reformation, and into the present. By examining the people, decisions, movements, and practices that shaped church history, you’ll gain greater insight into how the past continues to influence Christianity today—and what those lessons may mean for the future of the church.

Has the church replaced Israel? In One Lord, Two Bodies, Rev. Gerald Haug examines this long-debated question through Scripture and explores how our understanding of Israel and the church shapes the way we interpret biblical prophecy. You’ll discover biblical insights into Israel’s role in God’s redemptive plan, the relationship between Israel and the church, and how these issues affect the way you read and understand prophecy.