- In 1512, when John Calvin was only three years old and five years before Luther's 95 Theses, Oecolampadius preached that the penitent thief on the cross was "justified by faith."
- In 1516, Oecolampadius worked on Erasmus' team of scholars on the Novum Instrumentum Omne, the first edition of the (parallel) Latin-Greek New Testament on which the Reformers would come to base their interpretive work. Oecolampadius, who was asked to write the Epilogue to this seminal resource, was the only eventual Reformer to be part of this team.
- In April 1517, Oecolampadius issued, On the Paschal Laughter, an astute and multi-lingual critique of the popular misuse of the sermon for comic relief after Lent.
- From 1518 — 1522, Oecolampadius produced a number of translations of the Greek fathers, including Gregory of Nazianzus and John Chrysostom, whose style of exposition inspired both Zwingli, Capito, and Oecolampadius to reclaim serial lectio continua preaching.
- In 1521, in order to counter the abuses of the confessional rite, Oecolampadius issued a liberating treatise asserting: The paradox, that Christian confession should not be onerous. Eventually regular, corporate confession in public worship would replace the private confessional.
- In 1522, Oecolampadius was the first to translate the mass, read the scriptures, and preach in the vernacular, thus reforming both Word and Sacrament within a six-week span, some four months before Luther's September Testament (German New Testament) was published.
- In 1523, Oecolampadius lectured through the Book of Isaiah to packed auditoriums, using all three sacred languages: Hebrew, Greek, and Latin; he also preached a continuous exposition of 1John more thoroughly than anyone in the Christian era, including Augustine, had done before. Both became landmark works of biblical interpretation that were applauded in Wittenberg and thus represent the height of Reformed scholarship in the early period of evangelical unity.
- On March 19, 1525, Oecolampadius began his sermon, "On the Power of Christ over Satan," with the following: "The singular failing in which is all misfortune is ignorance of God and of ourselves." Eleven years later, in the same month (March 1536), the first edition of Calvin's Institutes was published, which began: “Nearly all the wisdom we possess, that is to say, true and sound wisdom, consists in two parts: The knowledge of God and of ourselves.”
- c. 1525-26, Oecolampadius drafted and circulated the Kinderbericht — the earliest children's catechism — from the Reformation; this would later, after his death, be developed into the Basel Confession of 1534.
- In the final pages of his recent biography of Zwingli, Yale professor Bruce Gordon acknowledges that between Zwingli and Oecolampadius, the latter was the stronger theologian.
Curating the biblical and Reformed theological traditions in order "to make the Word of God fully known"
Wednesday, October 7, 2026
Founding documents of the Reformed tradition: Works of Oecolampadius (5 vols.)
Monday, October 7, 2024
At the headwaters of the Reformed tradition
... we have this summary statement from Karl Barth's colleague on the Divinity faculty at the University of Basel:
Luther becomes a reformer because he cannot reach the assurance of salvation in the system of the Roman Catholic church; Oecolampadius becomes a reformer because, in the Roman Catholic church, he does not find the new creature in Christ sufficiently realized. For Luther it is about justification; Oecolampadius says in connection with 1Thessalonians 4:3, “God’s will is our sanctification.” With Luther, faith stands in the foreground, with Oecolampadius, that which flows from faith, the “piety,” the “sanctity,” the “charity,” both individually and in the totality of the “mystical body of Christ.” Luther represents a Christianity more strongly characterized by Paul, Oecolampadius by John.
—Ernst Staehelin, Breakthrough to the Reformation, pp. 128-129.
In case you were ever wondering what it means to belong to the Reformed tradition, this, I would suggest, is what it originally meant.
Tuesday, November 28, 2023
The First Year in Basel (corrected edition is up)
Corrected edition is up, just as the last days of 2023 (500th anniversary of Oecolampadius' first year in Basel) tick down.
The First Year in Basel contains the earliest German mass (published three years before Luther's), the next nine letters between Oecolampadius and Zwingli (the first two having appeared in previous volume: The Sermon on the Vernacular and the Correspondence with Hedio), excerpts from the famous Isaiah lectures, three prefaces to his Chrysostom translations (including those to the Psegmata and the 66 Genesis homilies), the four Theses for a Disputation, a painful rant from Capito against his colleague Hedio and Oecolampadius' pastor response, and his long letter to Bernhard Adelmann On the Distributions of Alms (or not discriminating among the poor). All (or most of it) "first-time-in-English" stuff. Perhaps the latter might make for instructive reading in Basel at the Bank of International Settlements? That may be too much to hope for. But certainly Presbyterian "Matthew 25" churches should read this.
Saturday, July 1, 2023
A Short Course in Preaching
Wednesday, February 16, 2022
"Sown on Rock": Oecolampadius' Sermon on the Vernacular (1522) is finally — after 500 years — in English translation
The whole of Oecolampadius 1522 correspondence is included here, as is the balance of his letters with Hedio through 1525. Among the latter is Hedio's (1524) Foreword to his German translation of Oecolampadius' Sermons on the First Epistle of John. In the generous Supplement to this new volume the reader also finds the first English translation of Ernst Staehelin's exhaustive and groundbreaking 1916 essay on Oecolampadius' translations of the patriarchs.
Dedicated with thanksgiving to the Triune God for preachers of the Word everywhere.



