Theology for Life: A Joy-Filled Introduction to Christian Doctrine
by Ronni Kurtz
DETAILS: Publisher: Baker Books Publication Date: September 8, 2026 Format: Hardcover Length: 256 pg. Read Date: September 27-October 4, 2026

This book is built on a rather simple conviction: One of the most practical things we can do in the Christian life is get an eyeful of the beauty of the Lord. In a world overflowing with to-do lists and self-help manuals, where pragmatism feels like a gravitational pull, giving sustained attention to the glory of the Lord is among the most preeminent ways to cultivate our souls and shape ourselves as persons.
Contemplating the beauty and glory of the Lord might not feel practical, if by practical we mean helping to meet some utilitarian goal like getting that promotion or being a better whatever. On the contrary, if getting an immediate payoff is the full depth of what it means for something to be useful, then much of theology would be useless. However, if we reconsider what it means for something to be useful and desire more than a shallow behavior or circumstantial modification; if instead we strive for the much more difficult goal of being formed as a person, where we are not merely modified but truly conformed, then what was once “useless” theology will show to be gloriously purposeful.
For example, take the apostle Paul’s instruction for the church in Corinth: “And we all, with unveiled face, beholding the glory of the Lord, are being transformed into the same image from one degree of glory to another. For this comes from the Lord who is the Spirit” (2 Cor. 3:18). Notice Paul’s goal for his readers: to be “transformed into the same image from one degree of glory to another.” The image Paul is referencing in this vital verse is none other than the image of Christ. Paul wants the Corinthian Christians to not merely modify a few behaviors or become a better version of themselves. Rather, Paul wants them to be transformed into the image of Christ. What is easy to miss in this passage, however, is that Paul not only gives the Corinthians a goal—to be transformed into the image of Christ—but also tells them the way they will achieve this goal. It is through beholding the glory of the Lord that believers will be transformed into the image of Christ.
What’s Theology for Life About?
To accomplish this—or at least to introduce readers to this lifelong practice—Kurtz examines “ten doctrines and theological ideas” of Christianity, examining them in a way that is approachable—but that might challenge some readers.
After defining and describing them, he looks for some ways (not exhaustively) that these ideas and doctrines will help the reader to behold the glory of the Lord and be transformed in them.
These doctrines/ideas are:
- The Trinity
- The Divine Attributes
- Creation (and not just in a focus on creationism vs. other ideas)
- Scripture’s Authority
- The Incarnation
- Justification
- Union with Christ (one could argue that this should come before Justification, but…eh)
- Preservation
- Ecclesiology
- Eschatology
Each item on that list gets about twenty pages—enough to satisfy the reader of an introduction, and enough to make someone want to learn more about some of these—with good footnotes to indicate further reading. I know I added a couple of titles.
Doctrine that Leads to Delight
…in this book, we will turn toward Christian doctrine not just to become better thinkers and theologians but with a particular goal in mind: delight. To put it plainly: Delight is what this book is after, and beholding God in Christian doctrine is the intended means to get us there.
It’s a truism oft repeated, but not oft (enough) seen in practice that good theology leads to doxology. And really, that the latter depends on the former.
Kurtz doesn’t invoke that phrase, but it lives within these pages. Each chapter ends with a section focusing on delighting in the subject—and the whole chapter leads to it. All the theology and discussion of the Scriptures is setting the stage for the idea: how does this lead to delight? How does this lead to worship and joy in my life?
I knew that the book intended to focus on this idea, but I didn’t understand how much it would be bent this way until I dug in. I’d have been more eager to read it if I had.
Preservation: Delighting in Your Security
That’s the title of Chapter 8, and I’m going to pause for a moment on it. I like to focus on a chapter or two per book that really strikes home for me in this type of book. We’ll count the previous section as one of those aspects, and Chapter 8 is the second.
It starts off with a discussion about Preservation of the Saints vs. Perseverence of the Saints, and as I’ve long abandoned any affection for the TULIP, I started to tune out (sorry, Dr. Kurtz). But as he moved on from that into discussion of assurance (or, as he prefers, preservation) in general, I engaged a bit more.
He then begins the “Delighting” section by noting this isn’t an academic doctrine to be argued about.
Rather, the doctrine of preservation of the saints is a doctrine for the pew, for the hospital bed, for desperate prayers, and for the dark nights of the soul. God’s preserving faithfulness ought to be a balm for the weary and life-giving in days of suffering.
He then spends some pages focusing on resting and repenting in light of it, and my notes simply read, “Gold.”
So, what did I think about Theology for Life?
This reminded me, in scope and purpose, of Essentials of Christian Theology, that I read earlier this year. I do think that this is more successful as an introduction—partially because Kurtz didn’t try to do as much as the editors of Essentials did in roughly the same number of pages—but also because of his focus on “Doctrine that Leads to Delight.”
I haven’t focused on the explaining/defining parts too much—Kurtz does a really good job lining out the essentials, showing why it matters and helping his readers to have a good handle on the ideas. As I said above, there’s enough to launch the reader into further reading, too. Solid effort throughout.
But it’s the delighting, the beholding the Lord in such a way that transformation can occur, where this book shines. That’s why we should study theology. Kurtz not only makes the argument, but he shows how to do it. The book is worth your time for this alone.
But it’s worth your time for the rest, too, I should stress.
Basically, this is a book more than worth your time and more than worth the effort in reading (which isn’t that great)
Disclaimer: I received this book as a participant in the Baker Publishing Group Nonfiction Reviewer Program—a book that I requested. However, as always here, the opinions expressed are my own.
This post contains an affiliate link. If you purchase from it, I will get a small commission at no additional cost to you. As always, the opinions expressed are my own.
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My Favorite Theology/Christian Living Books of 2025
By HCNewton
On January 11, 2026
In News/Misc., Theology/Christian Living
It’s finally time to wrap these lists, with my favorites in Theology and Christian Living (and related things). There’s some overlap in some of these titles, which just shows what kinds of things I was thinking about this year, I guess. I didn’t read as many books along these lines as I expected to/usually do–mostly because the ones I did read took some work to get through (and I had too many “project reads”). But these would’ve floated to the top in any year.
As always, re-reads don’t count for these lists.
(in alphabetical order by author)
by Michael P. V. Barrett
Barrett writes brief devotional meditations on some Old Testament passages (I’m not sure how brief because I read electronically, but they didn’t take terribly long to read). Which is good enough for a book–but Barrett writes with a depth that I don’t think I’ve come across in a devotional before. He gets to the heart and the nitty-gritty of the passages he looks at–and writes in a way that the reader will find application for their life, understanding of the passage, and a new/renewed reason to worship and serve the One who bought them.
The only thing that impressed me–almost every week–as much as the content was Barret’s ability to accomplish it so briefly.
by Mitchell L. Chase
My original post
I personally benefited from Chase’s definition of “wisdom” and how to find it in Scripture. I really appreciated his unwillingness to make Proverbs, Ecclesiastes, Song of Songs, and James the epicenter of his discussion, but to look for it throughout the Scriptures (see above). Tackling the topic of wisdom from a Redemptive Historical point of view rather than a Systematic perspective (which is what I’m used to, as I expect most are), really helped me to see the breadth of it—and even to help with my Systematic understanding of it (as it should).
All in all, this is a truly helpful and insightful read.
Why the Love of Money Is the Root of Racism and How the Church Can Create a New Way Forward
by Malcolm Foley
I’ve tried on at least four occasions to write a post about this book, and keep failing. I’m going to keep trying, but in the meantime, I’ll just say that this is one of the best books I read in 2025 regardless of genre/topic. Foley starts with Ida Wells’ point tying racism to money, and expands on that. He traces the connection between the love of money (which we know to be the root of all sorts of evil) and racism/racism-friendly policies and attitudes throughout U.S. History–particularly after the Civil War. And how the Church, to her shame, participates in those.
Then he points the way forward–using a variety of theological tools. Including the Westminster Larger Catechism’s teaching on the Eighth Commandment. It’s inspiring, it’s convicting, it’s full of hope.
by Carmen Joy Imes
My original post
Is this the most rigorous, robust work that I’ve ever read on The Church? No. Is this the most technical, theological work I’ve come across? No. Did this take a lot of effort to get through? No (and what a relief). Is this perhaps the most passionate work on the subject I’ve read? Yes. Is it perhaps the most persuasive about the need for individual believers (particularly in an individualist culture) to be involved with the Church? Also, yes.
It’s warm, it’s approachable, it’s learned in a non-off-putting way. Imes is a great guide through the topic and a fun companion through the stroll. She pointed out some things I hadn’t thought of before—and helped me grasp a couple of texts that I’ve struggled with for years.
by C. S. Lewis
There’s a lot of this book that I disagree with–but I appreciate the way that Lewis got to his conclusions. I also admit that Lewis might be closer to right than I am on those points. But the opening letter on prayer is one of the best things I’ve read on the topic, and while the rest of the book doesn’t reach those heights, I truly enjoyed and benefited from considering them. This is one of those books by him I hadn’t gotten around to reading in the past until my little Lewis-immersion project last year. It won’t be the last time.
by Zacharias Ursinus
As this is written by one of the chief authors of the Heidelberg Catechism, it’s impossible to get a more authoritative take on it. This is essentially the director’s cut of the catechism. Sure, we all know the answers, but how’d you get to that answer? Well, you think like so….
This is a treasure for anyone trying to understand and use the Heidelberg Catechism for personal use or for trying to raise the generation to follow.
by Drew Poplin
My original post
I hate the fact that books decrying the sin (or, in Poplin’s argument, heresy) of racism need to be written now. But the need for them is pretty clear to anyone in the American Church. This brief (perhaps too brief) book is a compelling read, calling racism what it is, an attack on God and His creation. Convicting, and hopefully convincing. It’s well worth the time to read.
by O. Palmer Robertson
Did this floor me as much as the first volume of this set (on the Gospels) did? Nope. But am I going to study Acts or Paul’s letters without consulting this in the future? Bigger nope. Robertson first traces the development of revelation and the Church’s understanding of it through Acts, then he spends the bulk of the book watching Paul’s themes develop and change over the course of his career–never contradictory, never inconsistent, but starting with certain emphases that develop into new ones given the events of his life and the needs of the Church throughout the First Century. It’s really a handy book to work through and to keep on hand for future use.
by Mikel Del Rosario
My original post
Del Rosario’s approach to the subject alone could put him on this list–let’s take an in-depth look at two passages and see what Jesus is claiming for himself in both. Let’s consider what the original audience heard–and seek to understand that by the way they reacted. Then let’s consider the implications of both. Del Rosario writes clearly and compellingly. The text—even when it gets technical—is straightforward and approachable by people who aren’t historical scholars.
Not only does reading this help buttress the confidence a reader has in the passage and Jesus’ claims in them, but Del Rosario gives his readers a model to follow when they come across similar passages.
by Cornelius Van Til
My original post
This is some pretty clear writing from a man widely considered not to be terribly clear all the time. Some of the commandments don’t get the same level of attention as others–and it makes sense given who Van Til is and his own driving focus.
It’s a very sound introduction, in line with the bulk of the Reformed stream of thought on the Law and its usage from the time of the Reformation forward. But a little more approachable given the length and the fact it was written in the 20th Century.