
The book
Ancient Wisdom, Modern Brains
A Twelve-Week Study for Men on Scripture, Science, and a Renewed Mind
By Jerry A. Smith, PhD
Twelve weeks, thirty-six passages of Scripture, and the best of what research has learned about how God made us. Each week gives you a chapter to read, a session for your men's group, and five days of study on your own.
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What the book is about
I wrote this book for men who want to love God with all their mind as well as their heart (Matthew 22:37). Over twelve weeks it walks through thirty-six passages of Scripture and reads each one alongside what researchers have learned about stress, attention, sleep, anger, friendship, temptation, and habit. Every chapter asks four questions. What does the passage say in its own setting? What did the studies actually find? Where do the two meet, and where don't they? And what will you do about it on Monday morning?
The answers keep pointing in the same direction. The disciplines God asks of us, such as rest, gratitude, forgiveness, guarding our thoughts, and staying close to one another, are not arbitrary rules. They fit the way He made us. The God who wrote the commands also designed the man who receives them, so it shouldn't surprise us when the two line up.
Why I wrote it
This book started in a study group. On Thursday nights a group of men gathers at my church, and I'm one of the participants. We have amazing leaders and participants in that room. We bring our books and Bibles, watch the teaching videos together, and work through the points, talking honestly about what it means to live as men of God in the middle of real lives.
While we worked through a study on taking responsibility for how we live, I kept noticing connections between the passages on the table and the research I'd spent years reading. I started bringing a few notes. The men were interested, so the notes became a paper, and the paper became this website. Then the men asked for more: more depth in the Scripture, more of the science, and more help knowing what to do with it. This book is my answer to that request.
How it fits with the paper and this site
The paper started the process with twelve passages, and it still stands as written. This site grew from there to 36 passages, each with its research, its limits, and five practices. The book takes all thirty-six, groups them three to a week, and goes much deeper. It adds stories from my own life, a closer reading of each passage in its setting, the research explained in plain words, and a running thread of connections from one week to the next. A brain that ruminates (Week 2) also worries (Week 3), sleeps poorly (Week 4), and snaps at the people it loves (Week 5). Pull on one thread and the others move.
The site and the book work together. Every chapter ends with a Go Deeper section that sends you to the pages here, where you'll find the full research, every source, and the Ask guide.
How each week works
- An opening story from my own life, from the Navy and carrier decks to thirty-five years of building technology, told as honestly as I can.
- The Word. A careful look at the week's three passages in their setting, with the other Scripture that speaks to the same theme.
- How We're Made. The research in plain words, with short boxes that explain the technical terms.
- Where They Meet, and Where They Don't. An honest summary of the convergence and its limits.
- Two More Witnesses. Two more stories, usually from Scripture, that bring the theme home.
- Threads Through the Book. How the week ties to the book's four threads and to the other weeks.
- The Group Session. Everything a group needs for a 60- to 75-minute meeting: an opening, readings, eleven discussion questions, five practices with evidence labels, and a closing prayer.
- On Your Own. Five days of personal study for the week between meetings, with a simple log.
The book closes with A Rule of Life, which gathers the practices from all twelve weeks into a daily, weekly, and lifelong pattern, with a thirty-day plan to get started. After that come notes for group leaders, a map of how all thirty-six passages connect (you can explore that map here), a Scripture index, and the full list of references.
Convergence, not proof
The book holds to the same ground rule as the paper: the verse does not need the study, and the study does not prove the verse. Scripture doesn't need a laboratory's permission to be true. When a passage converges with a finding, I mean only that the human pattern the text describes and the pattern the research measures look like the same pattern seen from two angles. I say plainly when a finding rests on a large trial and when it rests on one small study, and every practice carries a label for the strength of the evidence behind it. Some practices are labeled obedience, because God commends them whether a study has tested them or not.
Who it's for
- Men's groups. Read the chapter before you meet, use the group session together, and work through the five days on your own during the week after. The readings and questions stand on their own, so a man who missed the reading can still join in.
- Group leaders. You don't need to be a scientist or a theologian. The leader notes at the back show you how to run each session.
- Sunday school classes and small groups of any kind.
- A man reading on his own. Consider asking one other man to read along with you. Week 7 will tell you why.
The twelve weeks
Each week pairs an anchor verse with three passages from this site. Follow the links to read the research behind any week.
- Week 1 The Mind Can Be Renewed Romans 12:2 Renewing the Mind and Neuroplasticity“Talk of Them When You Walk”: Scripture Memory and Spaced Repetition“Train Up a Child” and the Neuroscience of Habit
- Week 2 What You Dwell On Philippians 4:8 “Dwell on These Things”: Attention, Rumination, and Gratitude“Why Are You in Despair, O My Soul?”: Talking to Yourself“Observe How the Lilies Grow”: Nature and the Ruminating Mind
- Week 3 Tomorrow Will Care for Itself Matthew 6:34 “Do Not Worry About Tomorrow”: Worry and the Body’s Stress ResponseA Joyful Heart and the Immune System“Bodily Discipline Is Only of Little Profit”: The Body in Its Place
- Week 4 Be Still Psalm 46:10 “Cease Striving”: Stillness and the Default Mode NetworkThe Sabbath, Chronic Stress, and the Hippocampus“He Gives to His Beloved Even in His Sleep”: Sleep as Gift
- Week 5 Slow to Anger Ephesians 4:26 “Do Not Let the Sun Go Down on Your Anger”: Sleep and Emotional Memory“Slow to Anger”: Why Venting Backfires“A Gentle Answer”: Co-regulation in Conflict
- Week 6 Coming Clean Matthew 6:14–15 Forgiveness“When I Kept Silent”: Confession and the Weight of Secrets“Godly Sorrow” and “the Sorrow of the World”: Guilt and Shame
- Week 7 Not Meant to Carry It Alone Ecclesiastes 4:9–10 “Two Are Better Than One”: Loneliness and Mortality“Perfect Love Casts Out Fear”: Social Regulation of Threat“Weep with Those Who Weep”: Empathy and Compassion
- Week 8 The Company You Keep Proverbs 13:20 “He Who Walks with Wise Men”: The Company You Keep“Love Your Enemies”: Contact Across the Dividing Wall“Singing with Thankfulness”: Music and Bonding
- Week 9 Walk the Other Way Proverbs 4:14–15 “Avoid It, Do Not Pass By It”: Fleeing Temptation“I Will Seek Another Drink”: The Craving Cycle“The Plans of the Diligent”: Patience and Delayed Reward
- Week 10 Enough Ecclesiastes 5:10 “He Who Loves Money Will Not Be Satisfied”: Contentment“More Blessed to Give”: Generosity and the Reward System“When I Consider Your Heavens”: Awe and the Right-Sized Self
- Week 11 When the Pressure Comes Romans 5:3–4 “Tribulation Brings About Perseverance”: Trials and Resilience“Pour Out Your Heart Before Him”: Lament and Naming What Hurts“Hope Deferred Makes the Heart Sick”: Hope and the Heart
- Week 12 Finishing Well Philippians 3:13–14 “I Press On Toward the Goal”: Purpose and a Longer Life“Do Not Exasperate Your Children”: Childhood Adversity and the Developing Brain“Teach Us to Number Our Days”: Wisdom and Age
See the editions

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Audiobook. The same book, read aloud, for the drive to work or the walk at the end of the day. Available now on Amazon.
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Scripture
Scripture quotations taken from the (NASB®) New American Standard Bible®, Copyright © 1960, 1971, 1977, 1995 by The Lockman Foundation. Used by permission. All rights reserved. lockman.org