Two lost St. Augustine sermons authenticated after manuscript study

Two Lost St. Augustine Sermons Authenticated After Manuscript Study

In a remarkable development for scholars of early Christianity, two previously unknown sermons by St. Augustine of Hippo (354–430) have been identified and authenticated in a 12th-century Latin manuscript preserved at a monastery in Pelplin, Poland. The discovery, announced by the University of Würzburg in early 2026, expands the known corpus of one of the Western Church’s most influential theologians and philosophers.

 The Discovery: A Routine Task Turns Extraordinary

In 2024, Professor Christian Tornau, a Latin scholar at the University of Würzburg, received a request to examine and decipher a medieval manuscript originally from Bad Doberan Abbey in Germany, now held in its daughter monastery in Pelplin. The volume contained six sermons attributed to Augustine. Four were already known, but two stood out as unfamiliar.

What began as a standard philological assignment quickly became a major find. Tornau, working with experts like Clemens Weidmann and later collaborating on a critical edition with Dorothea Weber for the Corpus Scriptorum Ecclesiasticorum Latinorum (CSEL), realized these texts were genuine Augustinian works.

 The Sermons: Wrestling with the Witch of Endor

Both new sermons address the biblical story of the Witch of Endor from 1 Samuel 28. In the narrative, King Saul, facing defeat by the Philistines and unable to receive guidance from God, consults a medium (the “witch”). She summons the spirit of the deceased prophet Samuel, who rebukes Saul and foretells his downfall.

This passage raises profound theological questions: How could a necromancer summon a prophet’s spirit? Does this imply limits on God’s omnipotence, or was it a divine allowance (or deception)? Augustine explores these ideas without rushing to a single conclusion.

According to Tornau, the first sermon—likely preached on a Sunday—presents the theodicy problem (why an all-powerful God permits such things) and outlines interpretations: either the apparition was an illusion by the witch, or God exceptionally permitted it as a warning to Saul. The second sermon, apparently delivered on the following Wednesday, weighs these options more deeply. This multi-part approach left room for the congregation to reflect, a hallmark of Augustine’s didactic style.

Tornau notes that the sermons’ rhetoric, humor, style, and content align perfectly with Augustine’s known works, reinforcing their authenticity.

 Rigorous Authentication Process

Past claims of “new” Augustine texts have sometimes proven to be forgeries or misattributions, so caution was essential. Tornau collaborated with Weidmann and organized a 2025 summer school in Vienna, where about 20 specialists in Latin Christian literature examined the texts. Consensus was unanimous: the sermons are authentic.

Tracing the manuscript’s history added another layer. A 12th-century copy is somewhat unusual for Augustine sermons (earlier copies from the 8th or 9th centuries are more common). Evidence points to a possible earlier exemplar from Amelungsborn Abbey in Lower Saxony, referenced in an old catalogue, though that library was destroyed during the Thirty Years’ War.

 Why This Matters

Augustine, Bishop of Hippo Regius (in modern Algeria), shaped Western Christianity, philosophy, and theology like few others. His Confessions, City of God, and teachings on grace, the Church, and original sin remain foundational. Sermons offer a window into his pastoral voice—preaching to ordinary believers, grappling with Scripture’s complexities in real time.

These new texts add to a body of work already enriched by earlier finds, such as the 26 sermons discovered in Mainz in 1990. They are not revolutionary like that cache, but they provide fresh insights into Augustine’s engagement with Old Testament puzzles and his method of inviting audiences into theological reasoning.

A critical edition of the sermons is expected from CSEL by the end of 2026, making them accessible to researchers and enthusiasts worldwide.

 A Living Legacy

This discovery reminds us that even after 1,600 years, treasures from the early Church can still surface in dusty manuscripts. It underscores the painstaking work of philologists who bridge ancient worlds with our own.

For anyone interested in patristics, biblical interpretation, or the history of ideas, these sermons promise rewarding study. Augustine’s willingness to sit with ambiguity—presenting options rather than dictating answers—feels strikingly relevant in an age of complex questions and polarized certainties.

What do you think? Does this expand your view of Augustine, or highlight the enduring power of careful manuscript scholarship? Share your thoughts in the comments. 

Stay curious about the past—it keeps revealing itself.