The AC Podcast Denominations Series: Roman Catholicism with David Deane
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Apr 10, 2026 David Deane, Irish Roman Catholic theologian and professor, explores what it means to be the one true Church and how tradition shapes belief. He discusses Marian and Petrine models, Vatican II’s language, why reform became schism, and the challenges and hopes for reunion and charitable engagement across divides.
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Church As An Ontological Yes
- The Church is an ontological reality that springs from individuals saying yes to the Holy Spirit, creating the real presence of Christ in the world.
- David Deane locates this ontological emergence at the Annunciation and links it to Romans 7–8–12 as the scriptural basis for ecclesial life.
Mary And Peter As Models Of Church Growth
- Marian and Petrine figures model growth in faith: both Mary and Peter learn to say yes to the Spirit and so manifest Christ in varying degrees.
- Deane emphasizes Fathers, Luther, and Kierkegaard all using Mary as exemplar of faithful responsiveness.
Vatican II On Subsistence And Salvation
- Vatican II shifted from equating the visible Roman institution with the whole Church to a subsistence view that the Church Catholic can exist beyond Rome.
- Lumen Gentium acknowledges salutary presence outside visible Roman structures while affirming Rome's ecclesial assets.
