A main refrain in this book is that the gospel itself is grounded in the Trinity. Fred Sanders says, “the gospel is Trinitarian, and the Trinity is the gospel. Christian salvation comes from the Trinity, happens through the Trinity, and brings us home to the Trinity.” (15). If we go deep into the gospel we should also, rightly, be going deeper into the Trinity.

Sanders wrote this book to addess the weak and shallow Trinitarianism in evangelicalism that he has observed. He says that diving into the gospel will go deep into the Trinity, into the deep things of God.

The first part of the book is an introduction (ch. 1-4), the second part studies the size and shape of the gospel as it relates to the Trinity (ch. 5-10), and the third section is practical (ch. 11-13) demostrating how the Trinity intersects with the practices of Bible reading and prayer.

Here is a list of the chapters,

1. Always Already Trinitarian
2. Compassed About by Father, Son, and Holy Spirit
3. Within the Happy Land of the Trinity
4. The Eternal Life of These Three
5. Lost in the Fullness of God
6. So Great Salvation
7. The Shape of the Gospel
8. Behold What Manner of Love
9. Into the Saving Life of Christ
10. Anchored in Jehovah: Experience and Assurance
11. Hearing the Voice of God in Scripture
12. Praying with the Grain
13. What Makes Christian Prayer Possible

I personally got a lot out of this book. I have read basic books on the Trinity but have not delved this deep into the doctrine. So this book intrigued me and pushed me to learn more about the Trinity. Sanders wades through some dense waters of theology but also includes many helpful illustrations and charts to picture the ideas being presented. It also has a handy study guide with helpful summaries, terms, and questions for groups. Sanders also introduces the reader to many theologians throughout church history by sharing with us their thoughts on the Trinity (such as Owen, Spurgeon, Rainsford, Packer, and Schaeffer).

This book is excellent. It has stood the test of time and is on its second edition. If you are new to studying the Trinity, I would start with reading sections on the Trinity in a good systematic theology such as Grudem. Then try a book like Delighting in the Trinity by Reeves or The Trinity by Swain. Then I would say you have a good background to read a book like this.

I received a copy of this book from Crossway in exchange for an honest review.