The Reverend Brian K. McGreevy, J.D.
On C.S. Lewis
Join the Reverend Brian K. McGreevy as he explores C.S. Lewis’s writings and life through the lens of his important insights for living Christianly in a post-Christian culture, looking at meaning and purpose, friendship, beauty and joy, suffering, hope, and apologetics. The current series is "Prince Caspian: Finding True Faith in Challenging Times." Past series have explored "The Screwtape Letters," "Mere Christianity," "The Lion, the Witch, and the Wardrobe," "The Great Divorce," and more.
Author
The Reverend Brian K. McGreevy, J.D.
Category
Podcast website
Latest episode
May 13, 2026
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Episodes
Mere Christianity, Episode 26 ~ Book 4, Chapters 3 and 4: "Time and Beyond Time" and "Good Infection" 19.05.2021
With his remarkable gift for analogy, Lewis in these chapters first explores what it means that God exists in multiple dimensions and is outside of Time in an eternal Now, and then moves to discussing the joyous and loving union of the Three Persons of the Trinity. Music link: https://www.youtube.com/watch?v=OiNktUBcvNs
Mere Christianity, Episode 25 ~ Book 4, Chapters 1 and 2: Making and Begetting and The Three-Personal God 12.05.2021
Book 4 of Mere Christianity, entitled "Beyond Personality: or First Steps in the Doctrine of the Trinity" delves into some great theological doctrines. Lewis is intent on explaining that is all about a new kind of life. "If Christianity only means one more bit of good advice, then Christianity is of no importance. There has been no lack of good advice for the last four thousand years. A bit more m...
Mere Christianity, Episode 24--Book 3, Chapters 11 and 12: Faith 05.05.2021
Lewis closes out Book 3 on Christian Behavior with a robust discussion of the dual meanings of Faith: Faith, the theological virtue, as well as Faith, the fruit of the Spirit. Music link: https://www.youtube.com/watch?v=C7BfP_zcvvc
Mere Christianity, Episode 23 ~ Book 3, Chapters 9 and 10 Hope and Charity 28.04.2021
Moving from the topic of Pride, the great sin, to a discussion of the theological virtues of Charity (Love) and Hope, Lewis's trenchant analysis of why we need to reclaim these virtues is an important word for the church today. "Good and evil both increase at compound interest. That is why the little decisions you and I make every day are of such infinite importance
Mere Christianity, Episode 22 ~ Book 3, Chapter 8: The Great Sin 21.04.2021
In his famous teaching on the sin of Pride in this chapter, Lewis builds a strong argument on why this particular sin is the most insidious and deadly for Christians: "According to Christian teachers, the essential vice, the utmost evil, is Pride. Unchastity, anger, greed, drunkenness, and all that, are mere flea bites in comparison: it was through Pride that the devil became the devil: Pride lead...
Mere Christianity, Episode 21 ~ Book 3, Chapter 7: Forgiveness 14.04.2021
In the quest to determine the most unpopular virtue, Lewis says Forgiveness may even eclipse Chastity in terms of most people's reluctance to practice the virtue. Yet, Jesus taught about how hugely important forgiveness is in the life of the Kingdom of God, not only in parables but also in the central part of the Lord's Prayer. Lewis examines why this virtue is so important in the life of the Chri...
Mere Christianity, Episode 20 ~ Book 3, Chapter 6: Christian Marriage 07.04.2021
Lewis's important chapter on Christian Marriage, like so many things in Mere Christianity, seems even more relevant today than when it was written. Here he addresses a Scriptural theology of marriage and problems with our cultural understanding of Love. Suffice to say that Lewis would not be a fan of the old hit song "You've Lost That Loving Feeling"!
Mere Christianity, Episode 19 ~ Book 3, Chapter 5: Sexual Morality 24.03.2021
In one of the more celebrated chapters of this book, Lewis takes on what he says is the most unpopular virtue: Chastity. Lewis's words here undermine the old show title "No Sex Please--We're British!" In his inimitable way, Lewis elucidates the Biblical standard and why it matters so profoundly for human flourishing.
Mere Christianity, Episode 18 ~ Book 3, Chapter 4: Morality and Psychoanalysis 17.03.2021
In this chapter, Lewis explores the nature of psychoanalysis, rejects Freudian worldview assumptions, and reflects on the true nature of moral choice.
Mere Christianity, Episode 17 ~ Book 3, Chapter 3: Social Morality 10.03.2021
Lewis's discourse on Christian Behavior continues with this chapter on justice and society. His reflections and conclusions are fascinating and relevant: "...The real snag in all this drawing up of blueprints for a Christian society [is that] most of us are not really approaching the subject in order to find out what Christianity says: we are approaching it in the hope of finding support from Chri...
Mere Christianity, Episode 16 ~ Book 3, Chapter 2: The "Cardinal" Virtues 03.03.2021
Lewis continues his discourse on Christian Behavior with this episode's chapter on the important topic of Virtue, focusing in on the "Cardinal" virtues of Prudence, Temperance, Justice, and Fortitude. It is a sad commentary on our times that those words seem so "old-fashioned" to our ears today.
Mere Christianity, Episode 15 ~ Book 3, Chapter 1: The Three Parts of Morality 24.02.2021
This episode launches into Book 3 of Mere Christianity, which is entitled Christian Behavior. "The Three Parts of Morality" is a marvelous explication of moral theology, complete with some of Lewis's best analogies, and helps explain much of the confusion about morality that we see in our culture today.
Episode 14 ~ Book 2, Chapter 5: The Practical Conclusion 17.02.2021
Lewis describes what he calls "the Christ-life" within us and how we enter fully into that life. "The Christian... thinks any good he does comes from the Christ-life inside him. He does not think God will love us because we are good, but that God will make us good because He loves us; just as the roof of a greenhouse does not attract the sun because it is bright, but becomes bright because the sun...
Episode 13 ~ Book 2, Chapter 4: The Perfect Penitent 10.02.2021
Lewis weaves together the problem of man's need for redemption, the love of God expressed in the Incarnation, and the power of Christ's sacrifice on the Cross to change everything, reminding us that "...fallen man is not simply an imperfect creature who needs improvement: he is a rebel who must lay down his arms."
Episode 12 ~ Book 2, Chapter 3: The Shocking Alternative 03.02.2021
Lewis takes on the topics of God's goodness and free will, the search for happiness outside of God, the radical things that Jesus said about His identity, the forgiveness of sins, and concludes with his famous trilemma apologia.
Episode 11 ~ Book 2, Chapter 2: The Invasion 27.01.2021
As Lewis unpacks the ideas behind what Christians believe, this chapter, "The Invasion," looks at why atheism is too simple and why an "inoculation" idea of Christianity is inadequate, and points towards the good news that the rightful king has landed, albeit in enemy-occupied territory.
Episode 10 ~ Book 2, Chapter 1: The Rival Conceptions of God 20.01.2021
Following the great success of the first series of five broadcast talks, "Right and Wrong as a Clue to the Meaning of the Universe," the BBC asked Lewis to continue with a new series entitled "What Christians Believe." Lewis opens this series with his thoughts on "The Rival Conceptions of God," looking at ways that the religious impulse has animated mankind from ancient times.
Episode 9 ~ Chapter 5: We Have Cause to Be Uneasy 13.01.2021
In this chapter, Lewis explores the implications about what we have been able to deduce about the nature of Reality and the Law of Human Nature in the first four chapters. In this episode, we will also reflect on Book I as a whole, and why its arguments and the power of Story are critically important for Christian witness in this cultural moment where Gospel humility seems to be in short supply.
Episode 8 ~ Chapter 4: What Lies Behind the Law 06.01.2021
"Ever since men were able to think, they have been wondering what this universe really is and how it came to be there. In this chapter, Lewis discusses the materialist view, the religious view, and the role of science, concluding that there "... is a Something which is directing the universe, and which appears in me as a law urging me to do right and making me feel responsible and uncomfortable wh...
Episode 7 ~ Chapter 3: The Reality of the Law 16.12.2020
"Men ought to be unselfish, ought to be fair. Not that men are unselfish, nor that they like being unselfish, but that they ought to be. The Moral Law, or Law of Human Nature, is not simply a fact about human behaviour in the same way as the Law of Gravitation is...a fact about how heavy objects behave." Lewis shows us in this chapter how the Law of Human Nature is a fact , a reality, about humani...
Episode 6 ~ Chapter 2: Some Objections 09.12.2020
Following Lewis's opening foray about the Law of Human Nature in his initial talk, he received many letters raising questions and some objections. He then addressed these points in his fifth talk. In the book, he changed the order and addressed the objections head on, using a remarkable series of analogies.
Episode 5 ~ The Law of Human Nature 02.12.2020
Lewis starts his book with a wonderful title for Book 1--"Right and Wrong as a Clue to the Meaning of the Universe." Rather than beginning with evidence about Jesus or comparative analysis of different religions, he starts with perhaps the most ancient and consistent question of the human heart--why are we here and what is the purpose and meaning of life?
Episode 4 ~ The 1952 Preface and Publication of Mere Christianity 18.11.2020
It was not until 1952 that the book we now know as Mere Christianity was published, including Lewis's broadcast talks with some important edits and additions. The apt analogy, one of the great joys of this book, makes a strong start in the Preface with Lewis's brilliant discussion of the meaning of words and the hall and doors image for the Christian faith. Join us as we explore this fascinating w...
Episode 3 ~ Origins: Lewis's On-Air Introduction and the 1942 Preface 11.11.2020
“It’s not because I’m anybody in particular that I’ve been asked to tell you what Christians believe. In fact it’s just the opposite.” Lewis's opening words here reflect his conviction that connecting with his audience right away was key to earning the right to be heard. Much like Jesus’s “Come and see” approach early in John’s Gospel, Lewis deliberately establishes a tone and approach and connect...
Episode 2 ~ Origins: The Man Behind the Curtain 04.11.2020
Join us as we explore the pivotal role of the Rev. James "Jimmy" Welch of the BBC in birthing the broadcast talks that led to the book we know today as "Mere Christianity." Welch's example is an inspirational one for us today and shows the difference one person can make.
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