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A Mystery Revealed: 31 Meditations on the Trinity (McGraw)

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Reformation Heritage Books
May, 2023
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Dr. Ryan McGraw peels back the curtain on how the Trinity forms the foundation for everything from evangelism to corporate worship. As he follows the Trinitarian shape of Scripture, McGraw brings this heavenly doctrine down to earth for the average Christian to experience.

These 31 meditations trace the biblical storyline, drawing us closer to the blessed persons of the Father, Son, and Holy Spirit.



  1. Trinitarian Grammar: What We Know about the Triune God Already
  2. The Church’s Trinitarian Grammar: What Others Can Teach Us about the Triune God
  3. Our Triune Creator
  4. The Trinity and the Holy Spirit in the Old Testament
  5. The Trinity, Providence, and Christ
  6. The Trinity and the Restoration Prophets
  7. The Trinity and Jesus Rejoicing in the Spirit
  8. The Trinity and the Sin against the Spirit
  9. The Trinity and God’s Word
  10. The Trinity, the Spirit’s Procession, and Christ with Us
  11. The Trinity, the Spirit’s Mission, and Our Mission
  12. The Trinity, Christ’s Intercession, and the Church’s Oneness
  13. The Trinity and Forgiving and Retaining Sins
  14. The Trinity, Baptism, and the Church
  15. The Trinity and the Elders of the Church
  16. The Trinity and Christ’s Incarnate Identity
  17. The Trinity and Christian Hope
  18. The Trinity and Walking with God in the Spirit
  19. The Trinity and Praying for the Spread of the Gospel
  20. The Trinity, Preaching, and Knowing God
  21. The Trinity, Assurance of Faith, and Final Salvation
  22. The Trinity and Spiritual Warfare
  23. The Trinity and the Spirit of Adoption
  24. The Trinity and the Nature of the Church
  25. The Trinity and Prayer for the Church
  26. The Trinity and Genuine Christianity
  27. The Trinity and the Gospel
  28. The Trinity and Enduring Persecution
  29. The Trinity and God’s Final Word
  30. The Trinity and Antichrist
  31. Keeping the Trinitarian Faith


“The doctrine of the Trinity is nuanced, difficult, and crucial. ‘The verbal expression of the Trinity is the most difficult job man has had to do,’ J. I. Packer once said. Ryan McGraw has served the church well by directly answering the critics who accuse Trinitarian Christians of philosophizing rather than theologizing, of speculating rather than expositing. He provides a verse by verse, text by text scriptural exposition of the historic doctrine of the Trinity, its formulation, careful expression, and practical application.”

—Terry L. Johnson, author of The Excellencies of God: Exploring and Enjoying His Attributes

About the Author

Ryan M. McGraw is the Morton H. Smith Professor of Systematic Theology, Greenville Presbyterian Theological Seminary. He has written more than 10 books in RHB’s “Cultivating Biblical Godliness” series.