Certainty4Eternity

Mark Gilbert
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  • Religion & Spirituality

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

  1. 13 hr ago

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

    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 with Protestant Christians led him to hear the gospel for the very first time. Together we explore why university campuses create unique opportunities for Christians to have meaningful conversations with Catholic friends, how to navigate differences in language and belief, and why long-term friendships often become the context where lives are changed. We're also joined by Natalia Reed, who with experience across Chile, Spain and Germany, shares her experience of speaking with Roman Catholics across Europe and the unique challenges Christians face in predominantly Catholic cultures. Whether you're a university student, part of a campus ministry, or simply want to share Jesus more clearly with Catholic friends and family, this conversation is packed with practical encouragement and real-life experience. If you'd like more resources to help you lovingly share the gospel with Catholics, subscribe and join us for each episode. ⏱ Chapters 00:00 Introduction 00:45 Why university is such an important mission field 03:20 Mark's journey from Catholicism to hearing the gospel 09:38 Why university creates unique gospel opportunities 16:25 Should Christians attend Catholic universities? 19:37 What happens to these friendships decades later? 28:06 Natalia's experience sharing Jesus across Europe 35:24 Practical advice for talking with Catholic friends 43:50 Final encouragement for Christians on campus Subscribe for more conversations helping Christians understand Catholicism and share the gospel with clarity, confidence and compassion. 💬 Got a question? Leave it in the comments or DM us on socials. We might feature it in an upcoming episode! 📲 Stay Connected 📸 Instagram @certainty4eternity | 📘 Facebook Certainty4Eternity 👍🏼 Like this video 🔔 Subscribe for fortnightly episodes 💬 Comment with your questions 📣 Share with friends curious about Catholicism & Christianity 🔔 If this video raised questions for you about Roman Catholicism or talking with Catholic friends about Jesus, check out Mark's published resources, including "Stepping Out in Faith", a collection of 11 stories from former Catholics.https://matthiasmedia.com.au/search?type=product&q=mark+gilbert 📖 Want to learn more about engaging conversations with Catholics and Mark's Ministry with C4E?Visit:https://encministries.org.au/ministry/ministry-to-roman-catholics/ #Christianity #Catholic #Gospel #Evangelism #University #Bible #Jesus #ChristianPodcast #Apologetics #Faith

    47 min

  2. 23 Jun

    Do Miracles Prove Catholic Doctrine?

    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 this episode of Certainty for Eternity, Mark and Rayne explore how miracles function within Roman Catholic theology and compare that with the biblical understanding of faith, revelation, and the role of signs and wonders. They discuss Thomas Aquinas' definition of miracles, Marian apparitions such as Lourdes and Fatima, miracles associated with saints, answered prayer, and why Protestants and Catholics often interpret miraculous events very differently. Most importantly, they ask a foundational question: 👉 What should Christians ultimately trust: miracles, experiences, church authority, or Jesus Christ revealed in Scripture? Whether you've experienced something you can't explain, have Catholic friends who point to miracles as evidence for their beliefs, or simply want to understand this topic more deeply, this conversation will help you think biblically about miracles and faith. Timestamps 00:00 What is a miracle? 00:16 Personal stories of answered prayer 05:15 Mark's unusual experience at a Catholic youth camp 06:33 Thomas Aquinas and the Catholic definition of miracles 08:40 How miracles function in Roman Catholicism 12:29 Miracles as a support for faith 15:19 Faith in Catholicism vs Protestantism 18:41 Signs and wonders in the New Testament 22:08 Can miracles prove God? 24:19 Lourdes and the Immaculate Conception 26:01 Marian apparitions and psychological explanations 27:18 Miracles and canonising saints 29:11 Can miraculous events be acts of judgment? 33:30 How Catholic doctrine develops around miracles 34:33 Fatima and the Miracle of the Sun 36:11 How to discuss miracles with Catholic friends 38:01 Why Jesus is better than signs and wonders 43:50 Practical advice for conversations with Catholics 46:16 What miracles should ultimately point us toward? 47:08 Should Christians teach in Catholic schools? Resources Mentioned ▶ Nature-Grace Interconnection Episode (Sacrament & Experience) https://youtu.be/u0437wK9Ur8?si=yk-6ZURPSSg5ctfF ▶ Interview with Rachel Ciano https://youtu.be/CVTOiiFATXI?si=F1mM8vufCPqmB1Du If you enjoy thoughtful conversations about Catholicism, Protestantism, church history, theology, and how to share Christ with confidence, consider subscribing and turning on notifications. Got a question? Leave it in the comments or DM us on socials. We might feature it in an upcoming episode! 📸 Instagram @certainty4eternity | 📘 Facebook Certainty4Eternity 👍🏼 Like this video 🔔 follow for fortnightly episodes 💬 Comment your questions 📣 Share with friends curious about Catholicism & Christianity 🔔 If this video raised questions for you about Roman Catholicism or talking with Catholic friends about Jesus, check out Mark's published resources, including "Stepping Out in Faith", a collection of 11 stories from former Catholics.https://matthiasmedia.com.au/search?type=product&q=mark+gilbert 📖 Want to learn more about engaging conversations with Catholics and Mark's Ministry with C4E?Visit:https://encministries.org.au/ministry/ministry-to-roman-catholics/

    50 min

  3. 5 Jun

    How Christians Can Share Jesus Through Sport

    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 open conversations about faith -especially with people from Catholic backgrounds. From CrossFit gyms to surf clubs, rugby teams and local sporting communities, they discuss how integrity, belonging, community and long-term relationships can point people toward Christ. They’re also joined by Peter from 360 Sports / Fellowship of Christian Athletes Australia, who shares powerful stories of discipleship, sport ministry, and how God is using sporting environments to reach people with the gospel. Whether you play competitive sport, coach a team, watch from the sidelines, or simply want to live openly as a Christian in everyday life, this conversation will encourage you to think differently about mission, friendship and faithful presence. ⏱ TIMESTAMPS 00:00 – Why talk about sport and faith? 02:15 – Why sport creates gospel conversations 05:16 – Why Catholics often open up in sporting communities 09:18 – Christian integrity on the sporting field 13:10 – 5 practical tips for sharing Jesus through sport 17:42 – Wearing your Christian identity naturally 20:20 – Peter on faith, rugby & ministry 25:06 – Discipling someone from a Catholic background 31:16 – Why evangelism starts where people already are 📌 Learn more about 360 Sports / FCA Australia: https://fca360sports.au If this episode encouraged you, consider subscribing, sharing the video, and leaving a comment with your own experiences of faith and sport. #Christianity #Catholicism #SportMinistry #Jesus #ChristianPodcast #CrossFit #Evangelism #FaithAndSport #Protestant #Gospel 💬 Got a question? Leave it in the comments or DM us on socials. We might feature it in an upcoming episode! 📲 Stay Connected 📸 Instagram @certainty4eternity | 📘 Facebook Certainty4Eternity 👍🏼 Like this video 🔔 Subscribe for fortnightly episodes 💬 Comment with your questions 📣 Share with friends curious about Catholicism & Christianity 🔔 If this video raised questions for you about Roman Catholicism or talking with Catholic friends about Jesus, check out Mark's published resources, including "Stepping Out in Faith", a collection of 11 stories from former Catholics. https://matthiasmedia.com.au/search?type=product&q=mark+gilbert 📖 Want to learn more about engaging conversations with Catholics and Mark's Ministry with C4E?Visit: https://encministries.org.au/ministry/ministry-to-roman-catholics/

    39 min

  4. 7 May

    Should Protestants Go to Mass?

    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 whether Protestant Christians should participate. If you’ve ever felt confused, curious, or uncomfortable at a Catholic Mass, you’re not alone. In this episode, we unpack: -What the Mass means in Catholic theology -Why the Eucharist is considered the “source and summit” -What Catholics believe happens to the bread and wine -Why Protestants are excluded from communion -Whether Christians should attend Mass at all We also share real-life experiences. From Catholic school to adult encounters - giving practical guidance for navigating Mass with wisdom, clarity, and compassion. Whether you're Protestant, Catholic, or just exploring Christianity, this episode will help you understand the deep theological differences and how to respond thoughtfully. ⏱️ TIMESTAMPS 00:00 – Introduction: Should Protestants go to Mass? 02:00 – Personal experiences of Catholic Mass 05:00 – What Catholics believe is happening in the Mass 10:30 – Why the Eucharist is the “source and summit” 15:00 – How the Mass gives “grace” (Catholic view) 21:30 – Why non-Catholics can’t take communion 27:00 – Is the Mass a sacrifice? (Key difference) 34:30 – Problems Protestants see with the Mass 52:00 – Should Christians attend Mass? Practical advice 1:05:00 – What about kids going to Catholic school? 💬 Got a question? Leave it in the comments or DM us on socials. We might feature it in an upcoming episode! 📲 Stay Connected 📸 Instagram @certainty4eternity | 📘 Facebook Certainty4Eternity 👍🏼 Like this video 🔔 Subscribe for fortnightly episodes 💬 Comment with your questions 📣 Share with friends curious about Catholicism & Christianity 🔔 If this video raised questions for you about Roman Catholicism or talking with Catholic friends about Jesus, check out Mark's published resources, including "Stepping Out in Faith", a collection of 11 stories from former Catholics.https://matthiasmedia.com.au/search?type=product&q=mark+gilbert 📖 Want to learn more about engaging conversations with Catholics and Mark's Ministry with C4E? Visit: https://encministries.org.au/ministry/ministry-to-roman-catholics/ #CatholicMass #ProtestantVsCatholic #Eucharist #ChristianityExplained #BibleTeaching #Theology #Apologetics #FaithInJesus #ChurchDifferences #CertaintyForEternity

    1hr 13min

  5. 25 Apr

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

    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, salvation, assurance, and the role of Mary. We explore: -Why Orthodoxy rejects sin as a barrier between God and man -How Catholic theology views sin as something to be removed over time -Why both traditions struggle with assurance of salvation -The surprising role of Mary in both systems -And why the Protestant understanding of the Gospel offers something radically different If you’ve ever wondered: 👉 “Do Catholics and Orthodox believe the same thing?” 👉 “Can you be sure you’re going to heaven?” 👉 “Why is Mary so important in these traditions?” This conversation will challenge what you think you know.💬 Got a question? Leave it in the comments or DM us on socials. We might feature it in an upcoming episode! ⏱️ TIMESTAMPS 0:00 – Intro 0:33 – Why Orthodoxy sees sin differently 1:50 – Why Jesus died (Orthodox vs Catholic view) 3:17 – Why there is NO assurance in Orthodoxy 4:26 – Catholic answers: who goes to heaven? 6:30 – The Catholic view of sin (the “stain” analogy) 8:30 – Purgatory explained simply 10:12 – Grace, sacraments, and salvation 12:20 – Orthodox salvation: cooperation & “worthiness” 14:41 – Why Mary becomes central 18:05 – How Catholic doctrine elevated Mary 24:04 – The Orthodox story of Mary (shocking claims) 27:46 – Is Mary the mediator of salvation? 30:15 – The Biblical Gospel vs tradition 31:38 – Why assurance of salvation matters 📲 Stay Connected 📸 Instagram @certainty4eternity | 📘 Facebook Certainty4Eternity 👍🏼 Like this video 🔔 Subscribe for fortnightly episodes 💬 Comment with your questions 📣 Share with friends curious about Catholicism & Christianity 🔔 If this video raised questions for you about Roman Catholicism or talking with Catholic friends about Jesus, check out Mark's published resources, including "Stepping Out in Faith", a collection of 11 stories from former Catholics.https://matthiasmedia.com.au/search?type=product&q=mark+gilbert 📖 Want to learn more about engaging conversations with Catholics and Mark's Ministry with C4E?Visit:https://encministries.org.au/ministry/ministry-to-roman-catholics/

    36 min
  6. Catholic vs Orthodox: What’s the REAL Difference? (Communion, Authority & Salvation Explained)

    8 Apr

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

    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 similarities to explore deep differences in authority, salvation, communion, and the nature of the Church.If you’ve ever wondered:-Are Catholics and Orthodox basically the same?-What caused the Great Schism of 1054?-Do both traditions teach the same gospel?-Why do both believe the bread and wine become Jesus?…this conversation will challenge and clarify your thinking.You’ll hear a clear, gospel-centered comparison that gets to the heart of the issue:👉 Is salvation about spiritual progress, or trusting in what Christ has already done?This is Part 1 of a two-part series.⏱️ Timestamps 0:00 – Introduction1:36 – Why this conversation matters2:14 – Mark Gilbert’s background (Catholic → Protestant)3:34 – John Diacos’ Orthodox background5:46 – The simplest difference: “Good people vs bad people go to heaven”8:15 – What is Eastern Orthodoxy really about?13:10 – Is Orthodoxy essentially Gnostic?24:00 – Communion explained: Transubstantiation vs Mystery34:13 – What is “the Church” in Catholicism vs Orthodoxy?John's Ministry Evangelising Eastern Orthodoxhttps://eeo.net.au/💬 Got a question? Leave it in the comments or DM us on socials. We might feature it in an upcoming episode!📲 Stay Connected📸 Instagram @certainty4eternity | 📘 Facebook Certainty4Eternity👍🏼 Like this video 🔔 Subscribe for fortnightly episodes 💬 Comment with your questions📣 Share with friends curious about Catholicism & Christianity🔔 If this video raised questions for you about Roman Catholicism or talking with Catholic friends about Jesus, check out Mark's published resources, including "Stepping Out in Faith", a collection of 11 stories from former Catholics.https://matthiasmedia.com.au/search?type=product&q=mark+gilbert📖 Want to learn more about engaging conversations with Catholics and Mark's Ministry with C4E?Visit:https://encministries.org.au/ministry/ministry-to-roman-catholics/

    52 min
  7. What Can Protestants and Catholics Do Together? (And What They Can’t)

    2 Apr

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

    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 questions in Christianity when thinking about Unity: where unity with Catholics is helpful, and where it becomes compromise.You’ll learn a clear framework for:What Protestants and Catholics should do togetherWhat they should not do togetherHow to navigate real-life situations with wisdom and convictionWe also explore:The truth behind ecumenical unityWhy saying the same creeds doesn’t mean the same beliefsA practical framework called co-belligerenceReal ministry experiences working alongside CatholicsIf you’ve ever wondered:👉 “Can we run events together?”👉 “Can we pray together?”👉 “Where is the line?”This episode gives you clear, principled answers.⏱️ TIMESTAMPS 00:00 Intro00:58 The Big Question: What Can We Do Together?02:27 Why “Ecumenical Unity” Falls Short07:23 Are Catholics & Protestants United in the Creed?10:06 Is Trinitarian Unity Enough?15:38 The Key Framework: Co-Belligerence17:17 Real Examples (Pro-Life, Marriage, Social Issues)19:58 What NOT To Do Together22:24 Real-Life Ministry Experience (Eric)42:52 Practical Takeaways & Final Thoughts🔗 Links 🔗1. Swedish Method Bible Studyhttps://youtu.be/HTdo1CxsDkc?si=hbpbA0ZU9eks1iRo2. “The God Who Saves” (Matthias Media)https://matthiasmedia.com.au/products/the-god-who-saves?srsltid=AfmBOoq8eX3K3U3ywpwqAypG4ORL3XLHBOq8m8_d2d2PijljqvsHKZ9SReferenced earlier in discussion💬 Got a question? Leave it in the comments or DM us on socials. We might feature it in an upcoming episode!📲 Stay Connected📸 Instagram @certainty4eternity | 📘 Facebook Certainty4Eternity👍🏼 Like this video 🔔 Subscribe for fortnightly episodes 💬 Comment with your questions📣 Share with friends curious about Catholicism & Christianity🔔 If this video raised questions for you about Roman Catholicism or talking with Catholic friends about Jesus, check out Mark's published resources, including "Stepping Out in Faith", a collection of 11 stories from former Catholics.https://matthiasmedia.com.au/search?type=product&q=mark+gilbert📖 Want to learn more about engaging conversations with Catholics and Mark's Ministry with C4E?Visit:https://encministries.org.au/ministry/ministry-to-roman-catholics/

    47 min
  8. What Should Protestants Do When Catholics Visit Their Church?

    19 Mar

    What Should Protestants Do When Catholics Visit Their Church?

    How should Protestant Christians care for people from a Roman Catholic background who come to church? How can we lovingly share the gospel while being clear about the real differences between Catholicism and biblical Christianity?In this episode of Certainty4Eternity, Rayne Orange and Mark Gilbert discuss practical and pastoral ways to welcome Roman Catholics into Protestant churches, youth groups, and Bible studies while helping them understand the Bible for themselves.Many Protestant churches today encounter people from a Roman Catholic background who are curious about the Bible, visiting church, or exploring the differences between Catholicism and Protestant Christianity.But how should we respond?Should we focus on the differences immediately?How can we avoid unnecessary conflict while still being faithful to the gospel?What is the best way to help someone from a Catholic background read and understand the Bible?In this episode, Rayne Orange and Mark Gilbert explore:• How Catholics often begin exploring Protestant churches• Why Bible reading is often the turning point• The importance of patience and compassion• Practical tools for Bible studies with Catholics• Why theological language can mean different things in Catholicism and Protestantism• How to avoid bitterness or argumentative attitudes• Resources that can help church leaders navigate these conversationsMark also shares insights from his own background and experience engaging with Roman Catholic theology.If you want to understand how to care well for people from Catholic backgrounds while maintaining biblical clarity, this episode will give you practical wisdom and encouragement.⏱️ Timestamps00:00 – Introduction to the episode01:05 – Why this topic is so important for churches02:40 – Real stories of Catholics coming to Protestant Bible studies05:10 – What often sparks curiosity about the Bible08:20 – Why reading Scripture is a turning point12:15 – Key theological differences between Catholicism and Protestantism18:40 – Why patience matters when discussing doctrine24:05 – Helping Catholics understand the Bible for themselves31:30 – Practical tools for running Bible studies40:10 – Avoiding arguments and bitterness49:20 – Helpful resources for churches and leaders56:10 – Final encouragement and summary🔗 Links1️⃣ Swedish Method Bible Study (video explanation)A video explaining how to run the Swedish Method Bible study https://youtu.be/HTdo1CxsDkc?si=e9umNrtvmnln781u2️⃣ Book by Gregg Allison Roman Catholic Theology and Practice: An Evangelical Assessment. Recommended as a resource for pastors or teachers wanting a deeper understanding of Catholic theology.https://tinyurl.com/8hwphfxn(Rayne's reading this right now! Highly recommend) 3️⃣ Previous podcast episode featuring Niamh on belonginghttps://youtu.be/lwiO7p_X64k?si=MAhjoJJy18vWBRZC4️⃣ Regarding Catholics leaving and becoming Protestant: Here's a Pew Research article showing about 34% of those who leave the Catholic church become protestants. https://www.pewresearch.org/religion/2009/04/27/faith-in-flux3/💬 Got a question? Leave it in the comments or DM us on socials. We might feature it in an upcoming episode!📲 Stay Connected📸 Instagram @certainty4eternity | 📘 Facebook Certainty4Eternity👍🏼 Like this video 🔔 Subscribe for fortnightly episodes 💬 Comment with your questions📣 Share with friends curious about Catholicism & Christianity🔔 If this video raised questions for you about Roman Catholicism or talking with Catholic friends about Jesus, check out Mark's published resources, including "Stepping Out in Faith", a collection of 11 stories from former Catholics.https://matthiasmedia.com.au/search?type=product&q=mark+gilbert📖 Want to learn more about engaging conversations with Catholics and Mark's Ministry with C4E?Visit:https://encministries.org.au/ministry/ministry-to-roman-catholics/

    1hr 4min
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About

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

Information

  • Creator
    Mark Gilbert
  • Years Active
    2025 - 2026
  • Episodes
    24
  • Rating
    Clean
  • Copyright
    © 2026 Mark Gilbert
  • Show Website
    Certainty4Eternity