Celtic Orthodox Church: The Celtic Church and Orthodox Church of the Culdees

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Die historische keltische Kirche und die heutige orthodoxe Kirche der Culdees

The Celtic Orthodox Church, also known as the Orthodox Church of the Culdees, is a living continuation and restoration of the ancient Celtic Church tradition. This page is a central guide to Celtic Orthodoxy, the historic Celtic Church, Culdee clergy, Celtic saints, Western Orthodox liturgy, Sabbath worship, daily prayer, and the sacramental life preserved in the Orthodox Church of the Culdees today.The word Culdee has long been associated with the early clergy, monks, scholars, abbots, and spiritual households of the Celtic Church. In the Scoti-Monasticon, Boece is quoted as saying that the term Culdee originally denoted monks, but in later usage was applied more broadly to priests. Dr. Wylie, in his History of Scotland, famously wrote that “the Culdee lamp” burned across many centers of Europe before later Roman missions attempted to extinguish those older lights.

This page gathers together the principal studies, books, articles, and source materials on Celtic Orthodoxy, the Culdees, the ancient British Church, the Celtic saints, and the restored witness of the Orthodox Church of the Culdees.

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What Was the Celtic Church?

The historic Celtic Church was the native Christian tradition of the Celtic lands: Britain, Ireland, Scotland, Wales, Cornwall, Brittany, and many connected missionary regions on the continent. It was not a modern invention, nor merely a romantic cultural memory. It was a real ecclesiastical and monastic civilization, formed through bishops, abbots, schools, saints, missionaries, liturgies, penitentials, scriptural study, and disciplined Christian communities.

The early Celtic Church preserved many features that differed from later Roman standardization in the West. These included strong monastic organization, reverence for older biblical customs, distinctive calendar questions, deep penitential discipline, embodied prayer, local tribal and family structures, and a powerful missionary spirit. Its saints were widely honored across Christendom long before the later divisions between East and West.

For a broader introduction, begin here:

Who Were the Culdees?

The Culdees were the spiritual heirs and servants of the Celtic Christian tradition. They are associated with prayer houses, abbeys, schools, choirs, hereditary ecclesiastical families, missionary communities, and disciplined religious households. In Ireland and Scotland especially, Culdee institutions remained connected with ancient churches, cathedrals, and monastic foundations.

The Culdee model was often organized around the muintir or spiritual household: a community of clergy, teachers, families, students, and servants of the church. Bishops served sacramentally, while abbots and hereditary coarbs often guarded land, learning, and continuity. This structure allowed the Celtic Church to survive political upheaval, invasion, reform, and suppression.

Study more here:

Celtic Saints and Apostolic Witness

The Celtic Church is known by its saints. Saint Patrick, Saint Columba, Saint David of Wales, Saint Columbanus, Saint Gall, Saint Othmar, Saint Brendan, Saint Eadbert, Saint Colman, and many others preserved and carried forward the ancient Christian faith. The Celtic lands produced a vast company of saints before and after Augustine’s Roman mission to England.

The Orthodox Church of the Culdees honors these saints as witnesses of the ancient, apostolic, and Orthodox inheritance of the British and Celtic Church.

Celtic Liturgy, Prayer, and Worship

The Celtic Church was deeply liturgical. It preserved daily prayer, psalmody, confession, fasting, vigils, embodied prayer, incense, Eucharistic discipline, and a reverent sacramental life. The Orthodox Church of the Culdees continues this inheritance through prayer, worship, biblical discipline, and the English Orthodox liturgical stream rooted in ancient British and Sarum usage.

Calendar, Sabbath, and Feasts

The Celtic Church preserved a strong biblical consciousness in worship, fasting, feast days, Sabbath questions, Paschal calculation, and holy seasons. The Orthodox Church of the Culdees teaches that the Celtic calendar controversies were not minor cultural disputes, but part of a wider struggle over biblical continuity, apostolic tradition, and ecclesiastical independence.

Monastic, Family, and Hereditary Traditions

The Celtic Church did not always follow the later Western assumption that monastic life must be detached from family, tribe, land, or hereditary continuity. In many Celtic settings, church houses, abbeys, schools, and coarbial offices were protected by families and clans. This helped preserve churches, libraries, liturgies, and lands across generations.

This is one reason the Culdee tradition survived so long. It was not merely an abstract institution. It was embedded in worship, people, land, family duty, and Christian inheritance.

Celtic Missions Across Europe

The Celtic Church was not confined to the islands. Irish, Scottish, British, and related monastic missionaries helped establish or influence Christian centers across Gaul, Germany, Switzerland, Italy, Bavaria, and beyond. Luxeuil, St Gall, Bobbio, and related foundations show the enormous reach of Celtic Christian mission.

The Orthodox Church of the Culdees Today

The Orthodox Church of the Culdees exists to preserve and restore the ancient Celtic Orthodox inheritance: biblical worship, apostolic succession, sacramental life, Celtic saints, monastic discipline, daily prayer, Sabbath and feast observance, and the cultural memory of the ancient British and Celtic Church.

We use the term Keltisch-orthodoxe Kirche not as a novelty, but as a description of the historic Orthodox Christian faith as preserved in the Celtic lands and continued through the Culdee tradition.

“And they that shall be of thee shall build the old waste places: thou shalt raise up the foundations of many generations; and thou shalt be called, The repairer of the breach, The restorer of paths to dwell in.”
— Isaiah 58:12

Communion, Inter-Communion, and Celtic Orthodox Liturgy

The Orthodox Church of the Culdees is not merely a historical study society, but a living Celtic Orthodox communion. Our work includes sacramental worship, daily prayer, liturgical restoration, Sabbath and feast observance, and fellowship with other Culdee and Celtic Orthodox clergy who preserve related streams of Western Orthodox, Celtic, and Culdean tradition.

St Andrew’s and St Joseph’s Orthodox Church of the Culdees maintains a welcoming inter-communion network, comparable though not limited to practices found among other Celtic Culdee jurisdictions. These include clergy and elders such as:

Durch orthodoxy, we mean the received Christian faith expressed through the Sacraments, Apostolic Succession, the historic Councils of the Church, and the ancient liturgical life of the Christian people. In its pure form, this orthodoxy makes room for a wide breadth of legitimate local tradition, including the Western Orthodox, Celtic, British, Gallican, Sarum, and Culdee streams.

OCC practices inter-communion in a broad Christian sense with those who maintain closed communion properly understood: communicants should confess the Gospel of Jesus Christ, repent of sin, be baptized, confirmed, and duly prepared for the Holy Mysteries.

Full Communion with St Andrew’s OCC is granted by certification with ministries that not only practice closed communion, but also make room, where ministers are available, for the fuller round of Celtic Orthodox observances, including Saturday liturgies, daily prayer, and the Biblical seven high holy days as practiced by our Church Fathers.

For related liturgical studies, see:

Foundational Books and PDFs

Ancient British and Celtic Heritage

Hebrew Celtic and Biblical Law Studies

Conclusion: Restoring the Ancient Paths

The Celtic Church was not a forgotten footnote. It was a living Orthodox Christian civilization of saints, abbots, bishops, schools, manuscripts, liturgy, law, missionary work, prayer, and holy discipline. The Culdees preserved much of this inheritance through centuries of pressure and change.

Today, the Orthodox Church of the Culdees continues to teach, preserve, and restore this ancient witness: the Celtic Orthodox faith, the saints of Britain and Ireland, the biblical calendar, the daily prayers, the ancient liturgy, the sacramental life, and the call to rebuild the old waste places.

For questions, membership, prayer, study, or communion inquiries, contact the Orthodox Church of the Culdees through CelticOrthodoxy.com.