The Sworn Book of Honorius

A GRIMOIRE THAT PROMISED THE VISION OF GOD.

What if one of the most mysterious grimoires of the Middle Ages promised something that seemed impossible: the direct vision of God while still alive? The Sworn Book of Honorius, known in Latin as the Liber Iuratus Honorii, is one of the most fascinating and controversial works of medieval ceremonial magic. Composed sometime between the late thirteenth and early fourteenth centuries, the work attributes itself to the enigmatic “Honorius, son of Euclid, master of Thebes.” Its extraordinary purpose was the attainment of the visio Dei through ritual discipline, purification, prayer, angelic invocation, and the mysterious Sigillum Dei. But who was Honorius? Was he a historical figure or a pseudonymous creation? When and where did the Liber Iuratus emerge? Why did the text remain almost entirely confined to manuscripts for centuries? And how did its ideas influence the later history of ceremonial magic? This critical historical study reconstructs the story of the Liber Iuratus Honorii through its surviving manuscripts, textual traditions, scholarly controversies, ritual structure, symbolism, and later influence. Inside you will discover:

• The origins and manuscript transmission of the Liber Iuratus.
• The mystery surrounding Honorius of Thebes.
• The nine surviving medieval manuscripts and their two major textual traditions.
• The Sigillum Dei and its complex symbolism.
• The ritual of the visio Dei and its theological foundations.
• Medieval learned magic and its relationship with Christian theology.
• Angels, spirits, numbers, ritual language, and magical symbolism.
• The connection between the Liber Iuratus and the Ars Notoria.
• The relationship between the medieval seal and the later tradition associated with John Dee.
• The trial of Olivier Pépin and the historical context surrounding learned magic.
• The transformation of the grimoire through Renaissance and modern occult traditions.
• More than a century of modern scholarship on the text. This is not a sensationalized occult manual. It is a critical and accessible investigation into a medieval text in which magic, theology, angelology, ritual discipline, and the pursuit of divine knowledge became inseparably intertwined. Drawing on modern scholarship and manuscript research, The Sworn Book of Honorius separates historical evidence from later legend and examines one of the most enigmatic grimoires to survive from the medieval world. For readers interested in medieval magic, grimoires, occult history, Christian esotericism, manuscript studies, and the history of Western ritual traditions.