The Hermeneutics of Authority: Luther, Leo, and the Contest over Christian Liberty in the Reformation[1]

Did the God of the Holy Bible endow Pope Leo with papal infallibility, or did God grant Christian liberty to Luther’s constituents to stand against what they perceived as doctrinal and moral issues of the Church? The inherent difficulty with the question is that the two perspectives are mutually exclusive. If Leo had infallibility as pope, then his word would be legitimate as unquestioned by those embracing the Christian faith, as much as accepting the authority of canonical Scriptures as God’s revealed Word. Luther and like-minded reformers rejected the conclusion that the papal office was God’s unique institution on earth and that Pope Leo, as Vicar of Christ, spoke with binding authority. Ex cathedra (Latin, “from the chair”) refers to the Pope’s exercise of supreme teaching authority. Rooted in the ancient symbol of the bishop’s chair, it became a technical term for rare papal pronouncements carrying the weight of infallibility. The doctrine was formally defined at the First Vatican Council in 1870.

In the history of the Christian faith, the breach of fellowship that erupted between Catholic and Protestant believers was a disruptive sectarian severing of fellowship. This bitter strife constitutes the early days of what has often been described as the Great Schism, which became, in rhetorical terms, the Great Chasm of Christendom.

A review of the epistemological and hermeneutical foundations in Luther's Concerning Christian Liberty is helpful in grasping the tension between the intellectual orientations of both parties.[2]

Epistemology, understood here in a heuristic sense, is the foundation upon which knowledge and authority are established, while hermeneutics is the method of scriptural interpretation by which such knowledge forms the intellect’s epistemological base. Epistemological authority lay at the heart of Martin Luther’s critique of the Catholic institution. Within Catholic thought, authority was understood to rest upon Scripture as interpreted through Tradition and exercised by the Magisterium, together forming the epistemological foundation of the Roman Curia and the wider Church. The authority of Pope Leo X, in particular, was perceived by contemporaries to derive from this complex synthesis, which conferred spiritual and political legitimacy.

Both Luther and the Catholic Church confess that Scripture is inspired by God. The dispute is not over whether Scripture is revealed, but how binding doctrine is identified and who exercises authority to teach and bind consciences. For Luther, binding doctrine derives from Scripture alone (sola scriptura). Church offices possess ministerial authority: they preach the Word and administer the sacraments, but they do not create doctrine. Conscience is bound to the Word of God, and teachers bind only insofar as they faithfully proclaim Scripture. Councils and popes may err; doctrine is tested and reformed by the Word. For Catholics, the “Deposit of Faith” comprises Sacred Scripture and Sacred Tradition, and the Magisterium (the pope with the bishops) has the authentic teaching office to guard, interpret, and — in defined conditions — teach infallibly. Thus, dogma represents doctrine to be held de fide, while the Church also exercises authority in governance (Canon Law) and mediates grace in the sacramental life to the faithful. Authority here is not a rival to revelation but its ordered service and safeguard.

Hermeneutical choices are directly anchored in one’s assumptions about epistemology. Luther viewed the Christian as possessing liberty in Christ and therefore free from bondage to the Court of Rome. By contrast, the Catholic Church held that Christians were under papal jurisdiction, exercised through the Court of Rome (the Pope’s courtly entourage, diplomats, and political presence) and embodied in the Roman Curia (the administrative body of the Holy See, composed of dicasteries, congregations, tribunals, and offices assisting the Pope in governance). Theologically and functionally, the faithful were held under the authority of the papacy. Luther describes this system as nothing less than a “Babylonian Captivity” of the faithful.

In his treatise The Babylonian Captivity of the Church (1520), Luther developed this critique, arguing that the papacy’s sweeping claims of authority, its distortion of the sacramental system, and its political structures had enslaved Christians by transforming the sacraments into instruments of papal control.

The late medieval Church, as Luther understood it, had distorted the very essence of the Gospel. His chief contention was not with minor abuses. He focused on the theological heart of the system: indulgences commodified forgiveness, papal authority usurped the primacy of Scripture, and the faithful were shackled to works rather than liberated by grace. For Luther, the crisis centered on justification, specifically whether salvation rested on faith in Christ alone or on the institutional machinery of the Church.

Building on this critique, Luther maintained that Scripture alone (sola scriptura) was God’s final Word, standing over against papal decrees. If Pope Leo, when speaking ex cathedra on matters of faith and morals, exercised papal infallibility, then Catholics would be bound to accept his teaching as free from error. However, this authority is not the same as Scripture itself, which alone is the inspired Word of God.

To further clarify the Catholic position, it is worth noting that the Catholic Church teaches that papal infallibility has been formally exercised only twice: in 1854 (the dogma of the Immaculate Conception) and in 1950 (the dogma of the Assumption of Mary). Catholics thus distinguish these rare, solemn definitions from the wider teaching of the pope or councils, which may be authoritative but are not necessarily infallible. These two occasions, Pope Pius IX’s bull Ineffabilis Deus (1854) and Pope Pius XII’s constitution Munificentissimus Deus (1950), remain the only universally recognized instances of papal definitions protected by infallibility.

Note. This table presents significant Christian writings arranged chronologically, beginning with the intertestamental Apocrypha and continuing through key Reformation texts and modern papal decrees. Titles are italicized following Chicago style, and dates reflect the original publication or promulgation. Brief descriptions summarize each work’s central theme and historical significance.

In order to clarify how Luther’s challenge to papal authority emerged within a longer contest over Scripture and tradition, the following timeline (Table 1) sets out the principal milestones that framed the debate on authority, liberty, and doctrine.

Where Scripture testified to only two sacraments instituted by Christ—Baptism and the Lord’s Supper, with Penance sometimes admitted—Rome had multiplied them to seven and bound their administration to papal authority. For Luther, this corrupted the sacraments and burdened the conscience of believers, replacing the freedom of the Gospel with bondage to ecclesiastical power. Thus, what Rome presented as the fullness of Catholic unity appeared to Luther as captivity, a system that subordinated Christian liberty to the machinery of the papacy.

The Catholic, or universal, Church took its name from the Greek word καθολικός (katholikos), meaning ‘according to the whole’ or simply ‘universal.’ In the early Church, the term signified the unity and universality of the Christian faith; however, in later centuries, reformers regarded it as the foundation of a papal system that claimed universal authority. A major division later emerged between the Eastern (Orthodox) and Western (Roman) branches of the Church. The Protestant Reformation began as a call to reform what its leaders perceived as a corrupt and decayed Catholic Church, challenging both doctrine and authority. Over time, this movement gave rise to multiple Protestant confessions and eventually to worldwide denominations that rejected aspects of Catholic dogma and practice. While political power was certainly at stake, the reformers saw themselves above all as resisting what they regarded as theological and institutional abuses imposed by the Court of Rome.

The “most holy of all Churches” (Latin, sanctissima ecclesia Romana) was a religious institution. However, Luther argued that the Catholic Church was more aptly termed the “Court of Rome” (Latin, Curia Romana), asserting that it had become a political-ecclesiastical body more corrupt than Babylon and Sodom.[3] This passionate rhetoric culminates in his polemic, which states, “not even antichrist, if he were to come, could devise any addition to its wickedness.”[4] The term ἀντίχριστος (antíchristos) represents the strongest antithesis to the name of Christ within Christian doctrine.[5] Luther’s choice of this word amounted to a theological indictment of the Catholic institution. Building further on his critique, he declared that the Church of Rome “has become the most lawless den of thieves, the most shameless of all brothels, the very kingdom of sin, death, and hell.”[6]

Luther’s idea of Christian liberty and the papacy’s claim to authoritative teaching appealed to the Holy Scriptures of the Christian faith. Each side believed its interpretation was ordained by God and thus represented truth. Luther positioned himself as the guardian of truth, while the Roman Church regarded itself as the arbiter and enforcer of truth.

Luther embraced Scripture as the final received Word of God, not subject to the innovations of man. For Luther, the Bible was God’s final revealed word to mankind. His hermeneutical perspective on Holy Scripture allowed for Christian liberty based solely on the “word of truth,” independent of any ecclesiastical legislation in the form of papal authority.[7] Luther admitted to having “inveighed sharply against impious doctrines” (epistemological foundation), with his guiding principle being “according to the example of Christ” (hermeneutical foundation). His polemic is concisely stated: “no dispute with any man concerning morals, but only concerning the word of truth.” Luther referred to papal authority as “the monstrous evils of this age.”[8] Politically, he designated the Court of Rome as a “foolish tyranny.”[9]

The Catholic Church regarded Scripture as part of the received Word of God; yet authority also rested in the papal office. When the Pope spoke with supreme teaching authority (what later theology would call ex cathedra), his pronouncements were understood to be safeguarded by the Holy Spirit and thus binding upon the faithful.[10] In practice, such utterances carried a weight comparable to Scripture, since they were treated as authoritative expressions of divine truth. Luther, by contrast, rejected this claim as a corrupt error against the word of truth.

Luther espoused an epistemological foundation that excluded man from adjudicating divine matters, grounding authority solely in the canonical Scriptures. By contrast, the Catholic Church had an epistemological foundation that included the interpretive role of the Magisterium, recognized the deuterocanonical writings alongside the canonical Scriptures, and affirmed the authority of papal teaching, understood to be safeguarded by the Holy Spirit. The deuterocanonical writings (such as Tobit, Judith, Wisdom, Sirach, Baruch, and 1–2 Maccabees) were received in the Catholic and Orthodox canons through the Greek Septuagint but rejected by Luther and the Reformers as “Apocrypha,” valuable for reading yet lacking doctrinal authority.

Luther discussed Christian liberty to affirm the believer’s freedom of conscience before God. He criticized the institutional power of the Church, which he argued enslaved the faithful, even calling it a group of “lawless bandits.”

This foundation is at best presumptive for the individual (according to Luther’s interpretation), who was entitled to Christian liberty, and for the institution (according to the Holy Church), which claimed the right to exercise papal authority.[11] The Crusades became, in Luther’s polemical framing, a means for acquiring power, land, and debt relief rather than a holy war to spread Christianity, reflecting imperial motives more than those of the Kingdom of Heaven. Luther argued for God’s favor as revealed in the Gospel, while the Catholic Church maintained a special authority alongside Holy Scripture. Luther, in contrast, insisted on Scripture alone as the ultimate authority.

The contrast between Luther and the Roman Church can be most clearly grasped by setting their epistemological and hermeneutical commitments side by side. The following comparison (Table 2) traces how each tradition grounded authority, approached interpretation, and determined the canon, thereby revealing their shared appeal to divine sanction and the irreconcilable paths that emerged from it.

Note. This table is organized top-to-bottom as a theological sequence (anthropology → justification → sanctification → Christ’s work → assurance) and left-to-right as a contrast (Luther’s Reformation vs. the Catholic Church’s teaching).

There is a sense of circular reasoning in determining who, if anyone, actually had God’s favor. Luther asserted that the Court of Rome was guilty of a “vexatious tyranny” and charged it with persecuting those who resisted the will of the Church. He assumed God’s favor toward himself, “since, by the favour of God, there was no hope of proceeding against me by force.”[12]

Thus, both Luther and Pope Leo claimed divine sanction for the power that the invisible God had bestowed upon them. This form of logic led to a problematic hermeneutic, since foundations built on presumptions produced a series of conflicting dogmas.

The question of who has “God’s ear” is a mystical question of favor and speaks to the assumption of an endowed ability to make authoritative pronouncements. This raises the age-old question of who has that special connection with God and who can use that connection to leverage personal gain.

Luther expressed a desire for Pope Leo to restrain what he described as the papacy’s agents in order to allow him personal peace. He also characterized Pope Leo and his supporters as deriving material advantage through office and position.

In Luther’s view, both perspectives were rooted in self-directed motivation. As long as power and religion remain, the questions of Concerning Christian Liberty will not be resolved among men.                                                                                                                                                    

References

^[1] This essay was written as an assignment for a postgraduate course led by Professor Niall Ferguson at Harvard University Graduate School. Harvard University, Western Ascendancy: The Mainsprings of Global Power from 1600 to the Present, DCE HIST E 1355, Fall 2009.

^[2]  Luther, Martin. Concerning Christian Liberty. Memphis, TN: Green Books, 2010. The work is divided into two sections: first, a short but rather fervent plea to Pope Leo to hear what Luther had to say about how corrupt the Holy Church had become in descending to the level of the Court of Rome; second, a longer portion devoted to an eloquent discussion of what constitutes Christian liberty.

^[3] Luther, 2. 

^[4] Ibid.

^[5] Scholars refer to this Scripture: “For the secret power of lawlessness is already at work; but the one who now holds it back will continue to do so until he is taken out of the way” (2 Thess. 2:7, ESV). Historically, the phrase “secret power of lawlessness” has been associated with the five references to “antichrist” in 1 and 2 John. In certain traditions, these passages have at times been interpreted as referring to the papal office; cf. 1 John 2:18, 22; 4:3; 2 John 7.

^[6] Luther, 3.

^[7] Ibid., 2.

^[8] Ibid., 1.

^[9] Ibid.

^[10] W. J. Bradnock, ed., H KAINH DIAQHKH (London: British and Foreign Bible Society, 1960), 646. The Koine Greek text of the New Testament, strictly translated, reads “all Scripture is breathed out by God,” or in modern syntax, “all Scripture is given by inspiration of God.” The word “inspiration” is crucial to understanding power in the theological world of Luther and Leo. The question is simply this: Did God inspire (breathe the words into) the psyche of Pope Leo and his constituents, thereby allowing the Holy Church to act as the Court of Rome in the name of God?

^[11] “Presumptive” is defined, in this context, as accepting a thought as fact without reliable proof.

^[12] Ibid., 5.

Bibliography

Apocrypha. Apocrypha. Various authors. c. 3rd century BCE–1st century CE. Included in Catholic and Orthodox canons as deuterocanonical.

Bradnock, W. J., ed. H KAINH DIAQHKH. London: British and Foreign Bible Society, 1960.

Luther, Martin. The Babylonian Captivity of the Church. 1520.

Luther, Martin. Concerning Christian Liberty. 1520.

Pius IX. Ineffabilis Deus. 1854. Papal bull defining the dogma of the Immaculate Conception.