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Religion & Spirituality

Certainty4Eternity

by Mark Gilbert
Religion & Spirituality
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Latest episodes

  • Can You Be Saved Without Knowing Jesus? | Camden Bucey

    October 15, 2026 · 1 hr 10 min

    In this episode of Certainty4Eternity, Mark Gilbert and Camden Bucey explore the theology of Karl Rahner, the Catholic idea of the “anonymous Christian,” and the way Roman Catholicism understands unity between Catholics, Protestants and…

  • I Grew Up Catholic. Here’s Why I Became Protestant | Sam Jensen

    October 15, 2026 · 34 min

    What happens when someone grows up Catholic, discovers Jesus through Scripture, and eventually becomes Protestant? In this episode of Certainty4Eternity, Sam Jensen shares her story of growing up in an Italian Catholic family, attending…

  • John Diacos on the Truth About the Rise of Orthodoxy & Catholicism

    August 31, 2026 · 1 hr 14 min

    Why are so many young Christians becoming Roman Catholic or Eastern Orthodox? Recent reports have highlighted growing numbers of young people, particularly young men, exploring historic Christian traditions. In this conversation, former…

  • The Best Books for Understanding Roman Catholicism

    August 13, 2026 · 43 min

    How do you share the gospel with your Catholic friends if you don't fully understand Catholicism yourself? In this episode of the Certainty4Eternity Podcast, Mark and Rayne share the books, Bible studies, courses and online resources that…

  • Why Catholics Do These Things: Mary, the Rosary, Relics & Lent

    July 18, 2026 · 1 hr 20 min

    Why do Catholics pray to Mary? Why do they use rosary beads? What are relics? Why do Catholics celebrate Ash Wednesday and Lent? And where do these practices come from? In this episode of Certainty for Eternity, Mark Gilbert and Rayne…

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  • I Met the Pope... Before Hearing the Gospel for the First Time

    June 30, 2026 · 47 min

    Many Roman Catholics first encounter the biblical gospel at university. Why? In this episode, Mark shares his remarkable story of meeting the Pope as a committed Roman Catholic before arriving at university where a simple conversation…

  • Do Miracles Prove Catholic Doctrine?

    June 23, 2026 · 50 min

    Do miracles prove Catholic doctrine? Can Marian apparitions, Eucharistic miracles, and claims of healing be trusted as evidence of truth? And how should Christians think about extraordinary experiences that seem impossible to explain? In…

  • How Christians Can Share Jesus Through Sport

    June 5, 2026 · 39 min

    Sport might be one of the most overlooked opportunities Christians have to build genuine relationships and talk about Jesus. In this episode of Certainty4Eternity, Mark and Rayne explore why sporting communities often create surprisingly…

  • Should Protestants Go to Mass?

    May 7, 2026 · 1 hr 13 min

    Should Protestants go to Catholic Mass? What actually happens in the Mass, and why does it matter so much? In this episode of Certainty4Eternity, we break down what Catholics believe about the Mass, the Eucharist, and salvation; and…

  • Can You Know You’re Saved? Catholic vs Orthodox Answers

    April 25, 2026 · 36 min

    What’s the real difference between Roman Catholicism and Eastern Orthodoxy? In Part 2 of this conversation between John and Mark, we break down the core theological divide - not just surface-level traditions, but the deeper issues of sin…

  • Catholic vs Orthodox: What’s the REAL Difference? (Communion, Authority & Salvation Explained)

    April 8, 2026 · 52 min

    What’s the difference between Roman Catholicism and Eastern Orthodoxy—and does it actually matter?In this episode, Mark Gilbert and John Diacos unpack the real theological divide between Catholicism and Orthodoxy—going beyond surface-level…

  • What Can Protestants and Catholics Do Together? (And What They Can’t)

    April 2, 2026 · 47 min

    What CAN Protestants and Catholics actually do together?Should Christians partner in ministry, prayer, or outreach - or are there clear biblical limits?In this episode of Certainty4Eternity, we break down one of the most confusing…

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About the show

C4E exists to help people share the good news about Jesus with people from a Roman Catholic background. Join us to hear insightful conversations for grown-ups and teens so that you can better understand Catholicism and have better conversations with your Catholic friends