Bisbee Theologica

In this episode, Isaac reflects on his first year in the Catholic Church. Moving beyond the initial intensity, he explores the reality of grace through the sacramental life—confession, the Eucharist, and the steady work of returning. Visit IsaacBisbee.com to read the full article and explore more content on Catholic theology and philosophy. This is a public episode. If you would like to discuss th...

Catholics and Protestants have different Old Testaments, but WHY? The history is complex and revealing... Visit IsaacBisbee.com to read the article and explore more content on theology, history, and philosophy. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit bisbeetheologica.substack.com

What is the Catholic Mass? To outsiders, Catholic worship services seem strange, overly rigid, and too “traditional”. In this episode, Isaac breaks down the core of the Mass. By revealing the Liturgy of the Word and Liturgy of the Eucharist, the Mass is the center of Christian life. Visit IsaacBisbee.com to read the full article and explore more content on Catholic theology and philosophy. This is...

What is the culture of Evangelicalism—and how did it get this way? In Part Two of his Evangelicalism series, Isaac turns from theology to culture, tracing how Evangelicalism’s rejection of tradition led to spiritual isolation, fragmentation, and deeply ingrained habits of fear. From church structure to purity culture, from cultural suspicion to interfaith hostility, this episode examines the unint...

What even is Evangelicalism? Is it Protestant? Is it historical? In this first installment, Isaac exposes how modern Evangelicalism has severed itself from the Church it claims to continue. Drawing on Church history, Reformation theology, and sacramental logic, he argues that Evangelicalism isn’t just a splinter—it’s a theological rupture. Visit IsaacBisbee.com to read the full article and explore...

Building on Part 1’s covenantal framework, this second installment turns to the early Church: What did the first Christians actually believe? With firsthand testimony from Ignatius of Antioch, Justin Martyr, and Irenaeus of Lyons, Isaac reveals a staggering truth—Real Presence wasn’t a medieval invention. It was the faith of the earliest believers. From the Apostles to the Church Fathers, the Euch...

In this episode, Isaac Bisbee takes a fresh look at the most central—but most contested—aspect of Catholic worship: the Eucharist. This isn’t just a debate over symbols or rituals. It’s about the logic of the covenant, the pattern of sacrifice, and the God who chose to feed His people with Himself. Drawing from Scripture, Temple typology, and the Last Supper, Isaac uncovers the staggering claim at...

In this episode, Isaac Bisbee explores one of the most controversial and misunderstood roles in Christian history: The Papacy. Drawing from Scripture, covenant theology, and the witness of the early Church, this episode reframes the Pope not as a medieval monarch, but as the royal steward of Christ’s kingdom. From Peter’s keys to Jerome’s submission, Isaac traces six reasons the Church still needs...

In this episode, Isaac Bisbee tackles one of the most misunderstood concepts in modern spirituality: the soul. Drawing from Thomistic metaphysics, Scripture, and a blend of Neoplatonic and Catholic thought, this episode explores what the soul really is—and what it means to be human. Far from being a ghost in a machine or a spark trapped in flesh, the soul is the divine idea of you—eternally known,...

In this episode, Isaac Bisbee explores why Catholics speak so often—and so highly—of Mary. Far from being a distraction from Christ, her role in salvation history reveals the depth of what God came to restore. Drawing from Scripture, Church tradition, and biblical typology, this episode unpacks Mary's identity as the New Ark, the New Eve, and the Queen Mother—showing how her life reflects the full...

In this testimony episode, Isaac Bisbee shares the journey that led him from committed Protestantism to the Catholic Church. Drawing from personal experience, study of Church history, and deep theological reflection, he explains why the Catholic faith offered answers that Protestantism could not — especially around unity, authority, and tradition. This episode invites listeners to examine their ow...

In Part 2 of the Salvation Series , Isaac Bisbee unpacks the Catholic understanding of faith, grace, and obedience — not as opposing ideas, but as essential elements of salvation. This episode explores how restoration through Christ requires more than belief alone, and why obedience plays a vital role in the Catholic vision of being truly made whole. Visit IsaacBisbee.com to read the full article...

In this opening episode of the Salvation Series , Isaac Bisbee explores the doctrine of Penal Substitution — a central belief in many Protestant traditions — and explains why it fails both biblically and theologically. This deep-dive challenges common assumptions and lays the groundwork for a fuller, more coherent understanding of salvation. Visit IsaacBisbee.com to read the full article and explo...