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The Eternal Son


Direct Price: $29.99 $22.99
Format: Paperback
Pages: 352
ISBN: 9781629958637
Release Date 09/24/25

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Using an historical-theological approach supplemented by exegesis, Letham develops a biblically faithful Christology of the Son's deity, humanity, and incarnation, while examining major Christological heresies and creedal responses to them.

Endorsements

"The doctrine of the person of Christ is one of the church’s greatest treasures. Thus, this subject is well worth careful theological reflection for the purpose of the sober reception and protection of biblical orthodoxy. Robert Letham has already established himself as a leading contemporary theologian on the doctrine of the Trinity. He once again proves to be an expert guide to the Christological views of a plenitude of theologians, including giants such as Athanasius, Cyril of Alexandria, Thomas Aquinas, Martin Luther, and John Calvin, as well as influential modern theologians—all the while offering his own trenchant analysis of this most precious topic. This is an outstanding book for anyone who wants to understand the view of Scripture and church history on the teaching of who Jesus Christ is."

Joel R. Beeke, Chancellor and Professor of Systematic Theology and Homiletics, Puritan Reformed Theological Seminary; pastor, Heritage Reformed Congregation, Grand Rapids, Michigan

"Letham understands that the grace and glory of the gospel of Christ rests on who he is. What gives the cross of Calvary its saving significance is the identity of the one who hung on that cross. . . . This is a book for theologians and pastors, but no less also for other serious-minded Christians who desire to ‘grow in the grace and knowledge of our Lord and Savior Jesus Christ."

Ian Hamilton, Professor of Historical Theology, Westminster Seminary, UK

"After his award-winning volume on the Trinity and his more recent book on the Holy Spirit, Bob Letham has fittingly turned his attention to the eternal Son. This is a thorough and comprehensive volume, focusing on the second person of the Trinity. As with the volume on the Holy Spirit, Letham gives full attention both to the teaching of Scripture and to the historical development of the doctrine. . . . The Eternal Son is an excellent account of the doctrine that cannot be ignored by any with an interest in the topic. We look forward now to the volume on the Father!"

Tony Lane, Professor of Historical Theology, London School of Theology

"Christology is not simply one among many points of doctrine. The triune God’s saving work through Jesus Christ is the heart of the gospel. To the degree that we displace Christology in the system of doctrine, we disfigure, if not transfigure, the gospel itself. Letham’s treatment of the eternal Son is full of biblical and historical insights into the person and work of Jesus Christ. Particularly noteworthy is the author’s extended attention to medieval Christological developments, since many Protestants today are unaware that most of our Christological heritage is based in the medieval rather than the earlier church. Vitally, Letham contrasts classical Christology to modern tendencies to treat Christ as the adopted Son as well as the natural Son of God, which are growing in popularity in biblical studies. Anyone desiring deeper insight into who and what Jesus is as the foundation of how he saves will find an excellent introduction here."

Ryan M. McGraw, Morton H. Smith Professor of Systematic Theology, Greenville Presbyterian Theological Seminary

"Robert Letham, in writing a volume on the second person of the undivided Holy Trinity, returns to something that has concerned him throughout his whole career: the Lord Jesus Christ, who became incarnate in the virgin’s womb, was born, suffered, died, rose again, ascended on high, and is in session—all for us—and is properly said to be the same yesterday, today, and forever (Heb. 13:8)."

Alan D. Strange, President, Mid-America Reformed Seminary, Dyer, Indiana

The Author

Robert Letham

Robert Letham

Robert Letham (MAR, ThM, Westminster Theological Seminary; PhD, Aberdeen University) is professor of systematic and historical theology at Union School of Theology in Bridgend, Wales, and the author of a number of books, including The Holy Trinity, The Lord's Supper, and Union with Christ.