Theopedia

John Knox

“The most perfect school of Christ that ever was since the days of the Apostles.”1

Overview

John Knox (ca. 1513/14-1572) was the leading figure of the Scottish Reformation, a student of John Calvin during his years of exile in Geneva, and the chief architect of Scottish Presbyterianism.2 Within a year of his return to Scotland in 1559, he helped draft both the confession of faith that established Reformed doctrine there and the church order built to sustain it.2 Philip Schaff ranked him, after Luther, Zwingli, and Calvin, among the greatest names in the history of the Protestant Reformation.1

Life and Ministry

Knox was born around 1513 or 1514 in Giffordgate, near Haddington, and was ordained to the Catholic priesthood sometime before 1540.2 His conversion followed his acquaintance with the Reformed preacher George Wishart, who returned to Scotland in December 1545 and drew Knox into his circle. When Wishart was arrested the following year, he sent Knox away with the words, “Nay, return to your bairns. One is sufficient for a sacrifice.” Wishart was burned at the stake soon after.2

Knox took refuge with other Protestants in the castle of St. Andrews, which was captured in July 1547. He then spent nineteen months as a galley-slave on a French ship, an ordeal said to have permanently injured his health.2 Released in 1549, he ministered in England at Berwick, Newcastle, and London, and was appointed a royal chaplain to Edward VI in 1551. The accession of the Catholic Mary I in 1553 drove him abroad: he accepted a call to the English congregation at Frankfurt in 1554 but resigned the next year amid disputes over the English liturgy, then settled in Geneva, where he came under Calvin’s direct influence for the rest of his exile.2 While there he published The First Blast of the Trumpet Against the Monstrous Regiment of Women (1558), an attack on female civil rule aimed at the Catholic queens then ruling England, Scotland, and France.23

Knox returned to Edinburgh on May 2, 1559, and became the recognized leader of the Scottish Reformers.2 When the Reformation Parliament of 1560 broke with Rome, Knox and five other ministers formulated the new church’s confession of faith and drew up the First Book of Discipline, the constitution of the reformed Kirk.2 Knox also wrote his own History of the Reformation in Scotland, begun around 1559 and completed over the following six or seven years.2 His first wife, Marjorie Bowes, died early in his Edinburgh ministry; in 1564 he married Margaret Stewart, daughter of Andrew, Lord Stewart of Ochiltree.2 Knox died in Edinburgh on November 24, 1572.2

Theological Contribution

Boettner writes that “Knox had gotten his theology directly from Calvin in Geneva,” and names a treatise on predestination as Knox’s chief theological work.1 That theology reached its most lasting form in the Scots Confession, which Knox drafted with five fellow ministers in 1560 and which governed the doctrine of the Scottish Kirk until the Westminster Confession replaced it in 1647.2

On the Lord’s Supper, the Confession steers between two positions it names as errors. It rejects the Roman teaching that the bread becomes Christ’s natural body, and just as firmly rejects the idea that the sacraments are “nothing else but naked and bare signs.” Instead it teaches that believers who partake in faith are made to feed on Christ’s body and blood by the operation of the Holy Spirit, “who by true faith carries us above all things that are visible, carnal, and earthly.”4 A. A. Hodge later grouped this article, alongside Calvin’s own Institutes and the Gallic Confession, among the classic Reformed statements on the Supper.5

On the marks of the true church, the Confession states:

“The Word of God truly preached, the sacraments rightly ministered and discipline executed according to the Word of God, be the certain and infallible signs of the true kirk.”6

It immediately qualifies this, however: visible membership in such a body is no guarantee that a given member is elect, since “the reprobate may be joined in the society of the elect” alongside true believers.6

Historical Significance

Boettner judges it “an easy matter to pick out the one man who in the hands of Providence was the principal instrument in the reformation of Scotland. That man was John Knox.”1 He records Thomas Carlyle’s assessment that “this that Knox did for his nation we may really call a resurrection as from death,” and James Anthony Froude’s verdict that Knox “was the one man without whom Scotland as the modern world has known it, would have had no existence.”1 Schaff wrote that Knox, “though four years older than Calvin, sat humbly at his feet and became more Calvinistic than Calvin,” and that the Presbyterian Church of Scotland became, in a real sense, “the daughter of the Reformed Church of Geneva.”1 On the strength of that legacy, Boettner calls Scotland “the Mother Country of modern Presbyterianism.”1

That legacy carries a genuine complication. The First Blast of the Trumpet’s case against female civil rule cost Knox once the Protestant Elizabeth I succeeded to the English throne later in 1558: she took offense at his argument, and after he revealed himself as the anonymous pamphlet’s author, she refused him entry to England.3

Related Doctrines

References

  1. Loraine Boettner, The Reformed Doctrine of Predestination (Grand Rapids: Wm. B. Eerdmans, 1932), 269-70. ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7

  2. W. Lee, rev. Henry Cowan, “Knox, John,” in Samuel Macauley Jackson, ed., The New Schaff-Herzog Encyclopedia of Religious Knowledge, vol. 6 (New York: Funk and Wagnalls, 1910), 362-65. ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12 ↩13

  3. “The First Blast of the Trumpet Against the Monstrous Regiment of Women,” Wikipedia, accessed September 9, 2026, https://en.wikipedia.org/wiki/The_First_Blast_of_the_Trumpet_Against_the_Monstrous_Regiment_of_Women. ↩ ↩2

  4. The Scots Confession (Edinburgh, 1560), art. 21, “Of the Sacraments.” ↩

  5. A. A. Hodge, Outlines of Theology (New York: Robert Carter and Brothers, 1879), 638. ↩

  6. The Scots Confession (Edinburgh, 1560), art. 25, “The Gifts Freely Given to the Church.” ↩ ↩2