Protestant Theology — Module 1
The Foundations
What is Reformed evangelical faith? Historical definition, the principle of Scripture, canon, Protestant currents.
« If you refuse to commit yourself to this work of God in Geneva, God will curse you, for you seek your own rest rather than Christ. »
« ... Very well. I will stay. »
What is Protestantism?
The term « Protestant » comes from the Protestation of Speyer (1529), when Lutheran princes protested against the Catholic majority's reversal of the 1526 Edict of Speyer, which had temporarily granted religious freedom. From a specific legal protest, the term became the generic name for all non-Catholic Western Christianity.
The Five Historical Pillars of the Reformation
The Reformation was built on a set of convictions constituting the material principle (content) and the formal principle (method) of Protestant theology.
Sola Scriptura
Scripture alone is the final authority for faith and practice. Not Tradition, not Councils, not the Papacy. Luther at Worms (1521): « Here I stand; I cannot do otherwise. » Contested by Catholics (Scripture + living Tradition) and Orthodox (Scripture + Holy Tradition).
Sola Fide
Justification by faith alone, without the merit of works. The central issue of the Reformation. Condemnation of the Pelagian idea that man can merit grace. « The article on which the Church stands or falls » (Luther). Cf. Rm 3:28; Gal 2:16.
Sola Gratia
Salvation from beginning to end is a work of God's grace alone. The fallen man contributes nothing — not even his free will (Luther vs. Erasmus on the bondage of the will, 1525). Election is unconditional (Calvin) or gracious (Lutheran).
Solus Christus
Christ alone is Mediator. No other mediator necessary (no intercession of saints, no priestly caste). « For there is one God and one mediator between God and men, the man Christ Jesus » (1 Tim 2:5). Direct access to God through Christ.
Soli Deo Gloria
All glory to God alone. Consequence of the other four solas: if God does everything, all glory returns to him. Rejection of any sharing of divine glory with human agents, the Church, or Tradition. Axiom of Reformed ethics.
The Three Major Reformation Branches
| Branch | Key Figure | Center | Characteristics | Confession |
|---|---|---|---|---|
| Lutheran | Luther (1483–1546) | Wittenberg | Justification by faith; consubstantiation; two kingdoms doctrine | Augsburg Confession (1530) |
| Reformed/Calvinist | Calvin (1509–1564) | Geneva | Sovereignty of God; predestination; symbolic Eucharist; theocratic vision | Heidelberg Catechism (1563) |
| Anabaptist/Radical | Grebel, Simons (~1525) | Zurich/Netherlands | Believer's baptism; strict pacifism; separation from State; voluntary Church | Schleitheim Confession (1527) |
The Concept of the "Universal Priesthood"
Luther's 1520 Address to the German Nobility dismantles the distinction between clergy and laity as two « estates ». All baptized believers are priests before God (1 Pet 2:9). This does not abolish ministerial function (called and ordained pastors proclaim the Word and administer the sacraments on behalf of the community) but removes the ontological barrier between clergy and laity: every Christian has direct access to God through Christ.
📍 The Hermeneutical Circle of the Reformation
Scripture interprets Scripture (Scriptura sui ipsius interpres — Luther). « Clear passages » illuminate the obscure ones. The scopus of Scripture is Christ — every passage is read in light of justification by faith. Consequence: the Reformers did not read Scripture « without presuppositions » but with a central theological conviction.
📚 Pour aller plus loin
Primary Sources
Academic Studies
⛪ Ecclesiology
Where does the word "Protestant" come from?
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From the Protestation of Speyer (1529) — Lutheran princes protested against the Catholic majority's reversal of the 1526 edict. Generic name for all non-Catholic Western Christianity since then.
✠ Principles
What are the two minimal marks of the true Church according to the Confessions?
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Pure preaching of the Gospel + correct administration of the sacraments (baptism and Lord's Supper). Formula from the Augsburg Confession (Art. VII). Reformed add church discipline as a 3rd mark.
☖ Sacraments
What does the "universal priesthood of believers" mean?
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Every believer has direct access to God through Christ without any human intermediary. Luther, Address to the German Nobility (1520). Does not abolish pastoral ministry but removes the ontological barrier between clergy and laity.
👑 Ethics
How many sacraments does Protestantism generally recognize?
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Two — baptism and the Lord's Supper. Instituted by Christ himself in the Gospels. Contrast: Catholicism = 7 sacraments; some Anabaptists speak of ordinances rather than sacraments.
⚖ Comparison
What is the doctrine of "vocation" (Beruf) in Luther?
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Every honest work is a service to God — the cobbler, the farmer, the mother. Demolition of the medieval hierarchy (religious life > secular life). A monk's vow brings no more merit than the plowman's daily labor.
The three major breaks: (1) Authority — sola scriptura vs. Scripture + Tradition + Magisterium. The Council of Trent (1546) affirms equal authority of Scripture and Tradition; the Reformation rejects this. (2) Justification — sola fide + imputed grace vs. infused and transformative justification. The Tridentine canons anathematize sola fide. (3) Mediation — solus Christus vs. the system of saints' intercession, indulgences, and purgatory. The Reformers abolish the invocation of saints and reject indulgences as lacking biblical basis.
McGrath. Reformation Thought. 4th ed. Blackwell, 2012. Oberman. Luther: Man Between God and the Devil. Yale, 1989.
Luther (Address to the German Nobility, 1520) asserts that all baptized believers are priests before God (1 Pet 2:9), on the basis of union with Christ the unique High Priest. This does not abolish ministerial function but: (1) removes the ontological barrier between clergy and laity; (2) makes every Christian capable of reading and interpreting Scripture; (3) grounds the right of civil authority to call a Reformation Council. Implication: the Protestant Church is a community of believers, not a hierarchical institution mediated by a priestly caste.
Luther. Address to the German Nobility (1520). WA 6, 404–469 / LW 44, 115–217.
Quiz — Protestant Foundations
5 questions
Q1/5
Where does the term "Protestant" come from?
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The Protestation of Speyer (1529): Lutheran princes protested against the Catholic majority's revocation of the 1526 edict granting religious freedom. The term became the generic name for all non-Catholic Western Christianity.Q2/5
What are the two minimal marks of the true Church according to the Augsburg Confession?
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Augsburg Confession, Article VII (1530): it is sufficient for unity that the Gospel be preached in conformity with a pure understanding of it, and that the sacraments be administered in accordance with the divine Word. Reformed add church discipline as a 3rd mark.Q3/5
How many sacraments does Protestantism generally recognize?
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The Reformation recognizes two sacraments: baptism and the Lord's Supper, both instituted by Christ himself (Mt 28:19; Lk 22:19-20). Catholicism counts 7 sacraments; some Anabaptist traditions prefer to speak of ordinances.Q4/5
What does the doctrine of the universal priesthood of believers mean?
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Luther (Address to the German Nobility, 1520): every baptized Christian is priest before God (1 Pet 2:9) by virtue of union with Christ the unique High Priest. Does not abolish the ordained ministry but removes the ontological distinction between clergy and laity.Q5/5
The regulative principle (Regulativprinzip) in worship is characterized by:
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The regulative principle (Calvin, Zurich Reformers): worship may contain only what Scripture positively commands. Contrasts with the normative principle (Lutheran): what is not prohibited by Scripture is permitted. Consequence: Reformed churches are more austere in worship (no images, no liturgical chanting).Score
Bibliographie complementaire
History of doctrine -- standard manuals
- Pelikan, Jaroslav. The Christian Tradition. 5 vols. Chicago: Chicago UP, 1971-1989.
- Kelly, J.N.D. Early Christian Doctrines. 5th ed. London: A&C Black, 1977.
- McGrath, Alister E. Christian Theology: An Introduction. 6th ed. Oxford: Wiley-Blackwell, 2017.
- Migliore, Daniel L. Faith Seeking Understanding. 3rd ed. Grand Rapids: Eerdmans, 2014.
- Webster, John, et al., eds. The Oxford Handbook of Systematic Theology. Oxford: OUP, 2007.
- Berkhof, Hendrikus. Christian Faith. Grand Rapids: Eerdmans, 1979.
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