Tracing the exchanged life and New Covenant grace through church history — a research genealogy of published works.
Compiled for the Simple Grace Commentary Series • Shawn Reinsel • 2026
Two Streams, One River
The history traced here is not a single movement but two intertwined streams that converge again and again across twenty centuries. Both flow from the same apostolic spring, and both have consistently drawn the same accusation from the religious establishment of their day: antinomianism. Nearly every author in this genealogy was, at some point, charged with preaching a grace too free.
The Free Grace stream concerns our standing: justification by faith alone, the finished work of the cross, freedom from the law as a covenant of condemnation, and the unconditional offer of Christ to sinners. This is the stream of Luther’s Galatians, the Marrow of Modern Divinity, Spurgeon, and the modern grace movement.
The Exchanged Life stream concerns our living: Christ Himself as the believer’s life, “not I, but Christ,” union with Christ in death and resurrection, and the abiding life of faith rather than self-effort. This is the stream of Hudson Taylor, Andrew Murray, Norman Grubb, Dan Stone, and Bill Gillham.
The two streams are one river because they answer the same error twice. Legalism attacks the believer’s acceptance (you must perform to be justified) and the believer’s walk (you must perform to be sanctified). Free grace answers the first; the exchanged life answers the second. The healthiest teachers in this genealogy — Paul first of all — teach both together: the New Covenant, in which the law is received from the mercy-seat in Christ rather than as a condemning covenant.
I. The Apostolic Root (First Century)
Every book in this genealogy is finally a commentary on Paul. The movement’s entire vocabulary is already present in the New Testament:
- Galatians 2:20 — “I have been crucified with Christ; and it is no longer I who live, but Christ lives in me.” The exchanged life text. Nearly every author in this document builds on this verse.
- Colossians 1:27 — “Christ in you, the hope of glory.” The indwelling life.
- Romans 6–8 — Union with Christ in death and resurrection; freedom from law; life in the Spirit.
- 2 Corinthians 5:21 — The great exchange itself: He became sin, we became righteousness.
- John 15 — “Abide in Me” — the vine-and-branches vocabulary of the union stream.
- Hebrews 8 — The New Covenant stated explicitly: law written on hearts, sins remembered no more.
Galatians itself — the subject of the third Simple Grace commentary — is the founding document of the free grace stream: an apostle placing a curse on any gospel of grace-plus-law. Every controversy in this genealogy, from the Marrow Controversy to the modern grace debates, is a replay of Galatians.
II. The Early Fathers (2nd–5th Centuries)
The Epistle to Diognetus (c. 130–200) — the first exchanged-life devotional outside the New Testament
An anonymous apologetic letter containing the celebrated “O sweet exchange!” passage — marveling that the righteousness of the one Son should cover the sins of the many. This is the great exchange preached with wonder, within living memory of the apostles. It is the movement’s oldest post-biblical witness.
John Chrysostom (c. 347–407) — grace preached against works-religion
Key works: Homilies on Galatians; Homilies on Romans
The great preacher of Antioch and Constantinople expounded Galatians verse by verse, defending justification by faith against the persistent human instinct to earn standing with God.
Augustine of Hippo (354–430) — grace as the fountain of everything
Key works: Confessions (397–400); On the Spirit and the Letter (412); Anti-Pelagian writings (411–430)
Against Pelagius, Augustine established that even the ability to respond to God is a gift, not a merit. On the Spirit and the Letter is essentially a treatise on 2 Corinthians 3 — the letter kills, the Spirit gives life — and is a direct ancestor of all New Covenant teaching. “Command what You will, and give what You command” is the exchanged life in a single sentence.
Thread: Luther was an Augustinian monk; the Reformation’s grace theology self-consciously claimed Augustine as its ancestor. The line from Augustine to Luther to Fisher to Boston is direct and documented.
III. Medieval Preservers (12th–15th Centuries)
Through the medieval centuries the thread runs thin but never breaks. A succession of writers kept resting-in-Christ alive inside a works-heavy system:
Bernard of Clairvaux (1090–1153) — resting in the merits of Christ alone
Key works: On Loving God; Sermons on the Song of Songs
Luther and Calvin both quote Bernard constantly and approvingly. His deathbed testimony — pleading nothing but the merits of Christ — circulated for centuries as a proof that free grace survived the medieval church.
Theologia Germanica (c. 1350, anonymous) — union with Christ, the self displaced
An anonymous mystical treatise on the death of self-will and the life of God in the soul. Luther personally edited and published it (1516, 1518), writing that no book apart from the Bible and Augustine had taught him more about God, Christ, and man.
Johann von Staupitz (c. 1460–1524) — the mentor who pointed Luther to the wounds of Christ
Luther’s monastic superior and confessor, who redirected the tormented young monk away from introspection and self-effort toward the crucified Christ. Luther said, “I have received everything from Staupitz.” A one-man bridge between medieval Christ-mysticism and the Reformation.
IV. The Reformation Fountainhead (16th Century)
Martin Luther (1483–1546) — the joyous exchange
Key works: The Freedom of a Christian (1520); Commentary on Galatians (1519; the great 1535 edition); The Bondage of the Will (1525)
The Freedom of a Christian literally names the movement: the fröhlicher Wechsel — the “joyous exchange” — in which Christ, like a bridegroom assuming a bride’s debts, takes our sin and gives us His righteousness. The 1535 Galatians commentary became the single most influential grace text in this entire genealogy: John Bunyan credited it (after the Bible) with his spiritual liberation; Charles Wesley was reading it when he found peace in 1738; John Wesley’s Aldersgate awakening came under a reading of Luther’s preface to Romans; and Edward Fisher mined it heavily for the Marrow.
John Calvin (1509–1564) — union with Christ as the architecture of salvation
Key works: Institutes of the Christian Religion (1536–1559), especially Book III
Calvin opens Book III of the Institutes with the principle that as long as Christ remains outside of us, all He has done profits us nothing — everything depends on union with Him. This doctrine of union supplies the theological skeleton for everything the exchanged life teachers later say devotionally.
Thread: Luther’s Galatians → Fisher’s Marrow (1645) → Boston’s edition (1726) → the evangelical revival → Spurgeon → the modern grace movement. This is the most documentable single chain in the genealogy.
V. The Puritan and Marrow Line (17th Century)
Edward Fisher (fl. 1627–1655) — law and gospel rightly divided, in dialogue
Key works: The Marrow of Modern Divinity (Part 1, 1645; Part 2, 1649)
Fisher distilled Luther, Calvin, and the best of the Reformed tradition into a dialogue between Evangelista (the pastor), Nomista (the legalist), Antinomista (the antinomian), and Neophytus (the young convert) — demonstrating that the gospel of free grace is the cure for both legalism and license, because both errors flow from the same root: divorcing the law from Christ. The book teaches that the believer receives the law from the hand of Christ the Mediator — from the mercy-seat — not from Sinai as a covenant of works.
Tobias Crisp (1600–1643) — free grace at full strength
Key works: Christ Alone Exalted (sermons, published 1643–1646)
Crisp preached the freeness of grace so strongly that he was branded an antinomian — a charge nearly every author in this genealogy has faced. The republication of his sermons in 1690 ignited a controversy in England that directly foreshadowed the Marrow Controversy in Scotland.
John Bunyan (1628–1688) — grace abounding to the chief of sinners
Key works: Grace Abounding to the Chief of Sinners (1666); The Pilgrim’s Progress (1678); The Doctrine of the Law and Grace Unfolded (1659)
Bunyan’s testimony form — the anguished conscience finding rest in an alien righteousness — became the movement’s signature genre, echoed later in Hudson Taylor’s letters and every exchanged-life testimony since. His liberation came, by his own account, through Luther’s Galatians.
Walter Marshall (1628–1680) — sanctification by faith, not effort
Key works: The Gospel Mystery of Sanctification (1692, posthumous)
The Puritan book the exchanged life movement rediscovered. Marshall argues that holiness comes only by union with Christ, received by faith — that trying to sanctify yourself by the law is not just difficult but impossible, and that you must receive Christ’s life before you can live it. Andrew Murray called it the best book on sanctification he knew; it reads like a 17th-century draft of The Normal Christian Life.
Thomas Boston and the Marrow Men (1676–1732) — the defense that named a movement
Key works: Boston’s annotated edition of the Marrow (1726); Human Nature in Its Fourfold State (1720); The Marrow Controversy documents (1718–1723)
Boston found a copy of Fisher’s forgotten Marrow in a parishioner’s cottage and championed it. When the Church of Scotland’s General Assembly condemned the book in 1720 — effectively condemning the free offer of the gospel — Boston and eleven other ministers (the “Marrow Men,” including Ralph and Ebenezer Erskine) formally protested. Boston’s 1726 edition, thick with his explanatory notes, became the standard text and is the basis of the present-day modernization project. The Marrow Controversy is the clearest institutional collision between free grace and legalism in Protestant history.
Thread: Sinclair Ferguson’s The Whole Christ (2016) argues the Marrow Controversy never really ended — that legalism and antinomianism remain the church’s twin temptations, both cured only by union with Christ. The controversy is thus the hinge of this whole genealogy: everything before flows into it, everything after flows out of it.
VI. The Evangelical Revival (18th Century)
Ralph & Ebenezer Erskine (1685–1752 / 1680–1754) — Marrow theology preached to the people
Key works: Ralph’s Gospel Sonnets (1720s); the Erskines’ collected sermons
The Erskine brothers carried Marrow theology out of the controversy and into decades of popular preaching and verse, seeding free grace deep into Scottish evangelicalism.
James Hervey (1714–1758) — imputed righteousness in dialogue form
Key works: Theron and Aspasio (1755)
A member of the Wesleys’ Oxford “Holy Club” who came to free grace convictions, Hervey wrote a hugely popular dialogue defending the imputed righteousness of Christ — consciously in the Marrow’s dialogue tradition.
William Romaine (1714–1795) — the life of faith, sustained for thirty years
Key works: The Life of Faith (1763); The Walk of Faith (1771); The Triumph of Faith (1795)
Romaine’s trilogy is the direct literary bridge between the Puritans and the Victorians: a sustained treatment of living by Christ’s life rather than one’s own, decades before Keswick. “The life of faith” as a phrase enters the movement’s bloodstream largely through him.
John Newton (1725–1807) — grace pastoral and personal
Key works: Olney Hymns (1779, with Cowper) — including “Amazing Grace”; Cardiphonia (letters, 1781)
Newton’s letters model grace applied to the struggling conscience, and his hymns catechized generations. The revival’s hymnody — Toplady’s “Rock of Ages,” Charles Wesley’s “And Can It Be” — taught the great exchange to millions who never read a theology book.
VII. The Victorian Convergence (19th Century)
The nineteenth century is where the genealogy’s two streams visibly converge — and where most of the names on the modern movement’s bookshelf cluster. The free grace stream flowed through the great preachers; the exchanged life stream crystallized in the Higher Life movement and the missions explosion; and the two met at Keswick and in the China Inland Mission.
Charles Haddon Spurgeon (1834–1892) — free grace from the world’s most famous pulpit
Key works: All of Grace (1886); Morning and Evening (1866); the Metropolitan Tabernacle Pulpit (63 volumes)
Spurgeon, saturated in the Puritans, preached justification by faith with unmatched reach. All of Grace — written to the unconverted reader, offering Christ freely with no conditions — is the Marrow’s free offer in Victorian prose.
Horatius Bonar (1808–1889) — the everlasting righteousness
Key works: God’s Way of Peace (1862); The Everlasting Righteousness (1873)
The Scottish hymn-writer and pastor gave the free grace stream two of its clearest 19th-century statements, insisting that peace with God rests on Christ’s finished work, never on the quality of our faith or feelings.
George Müller (1805–1898) — the life of faith demonstrated
Key works: A Narrative of Some of the Lord’s Dealings with George Müller (1837 onward)
Müller argued nothing; he demonstrated. Orphanages housing thousands, funded by prayer alone, made the life of faith empirically visible. His Narratives directly shaped Hudson Taylor’s faith-mission principles — Taylor knew Müller, and Müller financially supported the China Inland Mission’s early workers.
Hannah Whitall Smith (1832–1911) — the Higher Life named and popularized
Key works: The Christian’s Secret of a Happy Life (1875)
The Quaker writer whose bestseller launched the Higher Life movement: sanctification by surrender and trust, not struggle. The Brighton and Oxford conventions she and her husband Robert addressed led directly to the founding of the Keswick Convention (1875), which institutionalized the exchanged life stream for a century.
Andrew Murray (1828–1917) — the devotional master of abiding
Key works: Abide in Christ (1882); Absolute Surrender (1895); The Two Covenants (1898); Humility (1895)
The South African pastor gave the union stream its enduring devotional library. The Two Covenants is especially significant for New Covenant theology: a whole book on Hebrews 8, arguing the believer is meant to live consciously inside the New Covenant’s provisions rather than under the Old’s demands. Murray championed Marshall’s Gospel Mystery of Sanctification, personally linking the Puritan and Keswick eras.
J. Hudson Taylor (1832–1905) — the exchanged life itself
Key works: Union and Communion (1894); A Retrospect (1894); told in Hudson Taylor’s Spiritual Secret (1932)
In 1869, exhausted by striving, Taylor read a letter from fellow missionary John McCarthy describing holiness as “not a striving to have faith… but a looking off to the Faithful One.” His own letter to his sister — “I am no better than before; in a sense, I do not wish to be… for He, I know, is able” — became the movement’s defining testimony. When Dr. and Mrs. Howard Taylor told the story in Hudson Taylor’s Spiritual Secret, the chapter recounting 1869 was titled “The Exchanged Life” — and the stream had its name.
Thread: Taylor’s China Inland Mission became the movement’s seedbed. C.T. Studd sailed under Taylor in 1885; Studd’s son-in-law Norman Grubb became the 20th century’s chief union-life author; Grubb’s circle shaped Dan Stone. One mission, four generations of exchanged-life literature.
C.T. Studd (1860–1931) — reckless abandon to Christ
Key works: The Chocolate Soldier (1912); biography C.T. Studd: Cricketer & Pioneer by Norman Grubb (1933)
England’s most famous cricketer gave away his fortune and sailed for China as one of the “Cambridge Seven” under Hudson Taylor — an event that electrified British Christianity. He later pioneered in India and then Africa, founding the Worldwide Evangelization Crusade (WEC). His famous couplet — “Only one life, ’twill soon be past; only what’s done for Christ will last” — carried the surrendered life to the popular imagination.
VIII. The Twentieth Century: The Stream Widens
Charles G. Trumbull (1872–1941) — the Victorious Life in America
Key works: The Life That Wins (1911, address); Victory in Christ (1923)
Editor of The Sunday School Times, whose testimony of discovering Christ as his life launched the American Victorious Life movement and the Keswick-style conferences that carried it.
A.B. Simpson, F.B. Meyer, Ruth Paxson (late 19th–mid 20th c.) — the Keswick teaching corps
Key works: Simpson, Himself (address) and The Christ Life (1888); Meyer, The Christ-Life for Your Life; Paxson, Life on the Highest Plane (1928)
Simpson’s “Himself” — “Once it was the blessing, now it is the Lord” — compressed the exchanged life into a single refrain. Paxson’s three-volume Life on the Highest Plane systematized the identification truths (crucified, buried, raised with Christ) that the counseling wing of the movement would later build on.
Norman Grubb (1895–1993) — union life at full strength
Key works: Rees Howells: Intercessor (1952); The Law of Faith (1947); God Unlimited (1962); Yes, I Am (1982)
Studd’s son-in-law and successor at WEC, Grubb pushed the union stream to its boldest statements: the believer as a branch containing the life of the Vine, Galatians 2:20 as plain fact rather than aspiration. His books and relentless itinerant teaching seeded the American exchanged-life network of the 1960s–80s.
Watchman Nee (1903–1972) — the normal Christian life
Key works: The Normal Christian Life (compiled 1957); Sit, Walk, Stand (1957)
The Chinese teacher — himself downstream of CIM-influenced missions and Keswick literature — gave the movement its most systematic devotional statement: Romans 6 known, reckoned, and lived. Imprisoned by the Communist government in 1952, he died in prison in 1972; his books meanwhile discipled the West.
Major W. Ian Thomas (1914–2007) — the saving life of Christ
Key works: The Saving Life of Christ (1961); The Mystery of Godliness (1964); The Indwelling Life of Christ (2006)
Founder of the Torchbearers and Capernwray Hall. His formulation is the movement’s most quoted: Christ gave His life for you, so that He could give His life to you, so that He could live His life through you.
Miles Stanford (1914–1999) — the tradition curated
Key works: The Green Letters / Principles of Spiritual Growth (1975)
Stanford’s letters distilled and cross-referenced the whole lineage — Marshall, Romaine, Murray, Trumbull, Paxson — into a reading program, making him the movement’s librarian and proof that these authors form a single self-conscious tradition.
Charles R. Solomon (1930–) — the exchanged life applied to counseling
Key works: Handbook to Happiness (1971); The Ins and Out of Rejection (1976)
Founder of Grace Fellowship International, Solomon built a counseling methodology (“Spirituotherapy”) on the exchanged life: the cross applied to the wounded identity. Through him the stream entered the counseling office.
Bill & Anabel Gillham (1927–2011 / 1928–2010) — identity in Christ for the ordinary believer
Key works: Bill, Lifetime Guarantee (1987); What God Wishes Christians Knew About Christianity (1998); Anabel, The Confident Woman; He Said, He Promised
The Gillhams’ Lifetime Guarantee ministry, books, and radio teaching translated identification truth into plain, humorous, pastoral English: you are not a sinner saved by grace trying to improve — you are a new creation in whom Christ lives.
Dan Stone (1927–2005) — the rest of the gospel
Key works: The Rest of the Gospel: When the Partial Gospel Has Worn You Out (with David Gregory, 2000)
Shaped in Norman Grubb’s orbit, Stone taught the union life with unusual clarity about living from the spirit rather than the soul — above the line, not below it. The Rest of the Gospel has become the contemporary movement’s quiet classic.
David C. Needham & Bob George (20th c.) — identity and classic Christianity for the mainstream
Key works: Needham, Birthright: Christian, Do You Know Who You Are? (1979); George, Classic Christianity (1989)
Needham gave the new-identity teaching its careful exegetical defense; George’s People to People radio ministry and Classic Christianity carried grace-and-identity teaching to a vast popular audience.
IX. The Contemporary Grace Movement (1990s–Present)
Steve McVey (1954–) — grace walk
Key works: Grace Walk (1995); Grace Rules (1998); 52 Lies Heard in Church Every Sunday (2011)
A burned-out pastor’s exchanged-life testimony in the direct line of Hudson Taylor’s 1869 crisis. Grace Walk Ministries continues the Solomon–Gillham counseling and teaching lineage.
Bob Hoekstra (1944–2020) — day by day by grace
Key works: Day by Day by Grace (devotional); How to Counsel God’s Way (2010)
Out of the Calvary Chapel movement, Hoekstra taught New Covenant grace as the operating system of both the Christian life and biblical counseling — grace not merely as pardon but as God’s ongoing supply.
Andrew Farley (1972–) — the naked gospel
Key works: The Naked Gospel (2009); God Without Religion (2011); The Grace Message (2022); The Perfect You (2021)
The most visible current voice of the free grace stream: New Covenant hermeneutics (rightly dividing old and new), total forgiveness, and the believer’s new heart. Farley’s radio ministry and books are, in effect, the Marrow’s free offer and the Gillhams’ identity teaching for a 21st-century audience.
Companions in the present moment
Key works: Paul Ellis, The Gospel in Ten Words (2012) and Escape to Reality; John Lynch et al., The Cure (2011); Tullian Tchividjian, One Way Love (2013); Judah Smith, Jesus Is ___ (2013)
A broad contemporary shelf, popular and pastoral, testifying that the hunger for unmixed grace is as strong as ever.
Sinclair B. Ferguson (1948–) — the Marrow vindicated by the academy
Key works: The Whole Christ: Legalism, Antinomianism, and Gospel Assurance — Why the Marrow Controversy Still Matters (2016)
A rigorous Reformed theologian’s full-length argument that the Marrow Controversy’s issues are perennial — that legalism and antinomianism are non-identical twins from the same womb (a heart that separates the law from the loving Christ), and that the only cure for both is union with the whole Christ. An essential companion source for the Marrow modernization project, and scholarly validation of this entire genealogy.
Simple Grace Commentary Series (2020s–) — the thread continued
Key works: Simple Grace: A Handbook for New Covenant Living; Simple Grace in Genesis; Simple Grace: Exodus; Simple Grace: Galatians (in progress); The Marrow of Modern Divinity modernization (in progress)
The present project stands consciously at the confluence of both streams: the Fisher–Boston–Spurgeon–Farley line of free grace and New Covenant clarity, and the Taylor–Grubb–Stone–Gillham line of Christ as the believer’s life — with the Marrow’s own central insight as its through-line: the law received from the mercy-seat, from the hand of Christ, not from Sinai as a covenant of condemnation.
X. The Documentable Influence Chains
For research purposes, these are the genealogy’s strongest, most citable lines of direct influence — where one author demonstrably read, published, mentored, or was converted through another:
Chain 1 — The Free Grace Line
Paul (Galatians) → Augustine (anti-Pelagian writings) → Staupitz → Luther (1535 Galatians) → Fisher (Marrow, 1645) → Boston & the Marrow Men (1726 edition) → the Erskines & Hervey → Romaine & Newton → Bonar & Spurgeon (All of Grace) → 20th-century free grace teaching → Bob George, Bob Hoekstra, Andrew Farley → Simple Grace.
Chain 2 — The Exchanged Life Line
Paul (Galatians 2:20) → Diognetus (“O sweet exchange”) → Bernard & the Theologia Germanica → Calvin (union with Christ) → Walter Marshall (Gospel Mystery, 1692) → Romaine (Life of Faith) → Hannah Whitall Smith & Keswick (1875) → Andrew Murray (who championed Marshall) → Hudson Taylor (1869; “The Exchanged Life,” 1932) → C.T. Studd (CIM, 1885; WEC) → Norman Grubb (Studd’s son-in-law) → Watchman Nee, Ian Thomas, Miles Stanford → Charles Solomon → Bill & Anabel Gillham, Dan Stone → Steve McVey → the present movement.
Chain 3 — The Hymn Line (the movement sung)
Wesley’s “And Can It Be” (1738) → Toplady’s “Rock of Ages” (1776) → Newton’s “Amazing Grace” (1779) → Spafford’s “It Is Well” (1873) → Simpson’s “Himself” — free grace and the exchanged life catechized in song for those who never read the books.
The pattern across all twenty centuries: every generation, someone rediscovers that the gospel is Christ Himself — given for us (free grace) and living in us (the exchanged life). Every generation, the religious establishment calls it dangerous. And every generation, the books survive, get handed to a weary believer, and light the fire again. Boston found the Marrow in a cottage. Bunyan found Luther in a bookstall. Taylor found rest in a friend’s letter. The thread holds.
Appendix: A Suggested Primary-Source Reading Order
For working through the tradition chronologically in primary sources (all in print or freely available):
- 1. Epistle to Diognetus (2nd c.) — chapters 8–9, the “sweet exchange”
- 2. Augustine, On the Spirit and the Letter (412)
- 3. Luther, The Freedom of a Christian (1520)
- 4. Luther, Commentary on Galatians (1535) — at least the preface and ch. 1–3
- 5. Fisher/Boston, The Marrow of Modern Divinity (1645/1726)
- 6. Marshall, The Gospel Mystery of Sanctification (1692)
- 7. Romaine, The Life of Faith (1763)
- 8. Bonar, God’s Way of Peace (1862)
- 9. Smith, The Christian’s Secret of a Happy Life (1875)
- 10. Murray, Abide in Christ (1882) and The Two Covenants (1898)
- 11. Spurgeon, All of Grace (1886)
- 12. Taylor & Taylor, Hudson Taylor’s Spiritual Secret (1932) — esp. “The Exchanged Life”
- 13. Grubb, C.T. Studd: Cricketer & Pioneer (1933) and Yes, I Am (1982)
- 14. Nee, The Normal Christian Life (1957)
- 15. Thomas, The Saving Life of Christ (1961)
- 16. Stanford, Principles of Spiritual Growth (1975)
- 17. Gillham, Lifetime Guarantee (1987)
- 18. Stone & Gregory, The Rest of the Gospel (2000)
- 19. McVey, Grace Walk (1995); Hoekstra, Day by Day by Grace
- 20. Farley, The Naked Gospel (2009); Ferguson, The Whole Christ (2016)