Everything Bristol Bridge writes is grounded in primary-source documents. We do not cite scholars, pundits, or apologists — we cite the actual teaching of the traditions themselves, as those traditions have committed themselves to it in public. Below are the sources we most often return to, freely available for your own reading.
Catholic SourcesThe Catechism of the Catholic Church. The single most comprehensive official statement of Catholic doctrine. Promulgated by Pope John Paul II in 1992, it draws on Scripture, the Church Fathers, the liturgy, the Councils, and the Magisterium. Read at vatican.va.
The Council of Trent. The Catholic Church's definitive response to the Reformation, convened from 1545 to 1563. Its Decree on Justification (Session VI, 1547) remains the Church's fullest treatment of that doctrine.
The Second Vatican Council. The most significant council of the twentieth century. Its documents — especially Lumen Gentium, Dei Verbum, and Unitatis Redintegratio — reshape the modern Catholic understanding of the Church, Scripture, and ecumenism.
Papal Encyclicals. The primary teaching documents of each pontificate. Available in full on the Vatican website, searchable by title, pope, or theme.
Protestant Confessional SourcesLutheran
The Book of Concord (1580). The complete collection of Lutheran confessional documents, including the Augsburg Confession (1530), the Apology of the Augsburg Confession, the Smalcald Articles, Luther's catechisms, and the Formula of Concord.
Reformed
The Westminster Standards (1647). The Westminster Confession of Faith, the Shorter Catechism, and the Larger Catechism. The defining documents of Presbyterian theology.
The Three Forms of Unity. The Heidelberg Catechism (1563), the Belgic Confession (1561), and the Canons of Dort (1618–19). The Dutch Reformed standards.
Anglican
The Thirty-Nine Articles (1571). The doctrinal standard of the Church of England, shorter and more flexible than the Reformed confessions but clearly Protestant in orientation.
The Book of Common Prayer (1662). The Anglican liturgical book, which carries the theology of the tradition embedded in its prayers.
Wesleyan
The Articles of Religion (1784). John Wesley's adaptation of the Thirty-Nine Articles for the Methodist movement.
Wesley's Standard Sermons. The forty-four sermons that function as Methodism's doctrinal standards alongside the Articles.
Baptist
The Second London Baptist Confession (1689). The most significant historical confession for Reformed Baptists, closely parallel to the Westminster Confession with Baptist distinctives on the church and sacraments.
The Baptist Faith and Message (1925, 2000). The doctrinal statement of the Southern Baptist Convention, the largest Baptist body.
The Early Church FathersThe patristic writings — the works of the first eight centuries of Christian thinkers — are the common inheritance of Catholic, Orthodox, and Protestant traditions. Both sides claim continuity with them. Both sides will be surprised by what they find.
The Apostolic Fathers. The earliest extra-biblical Christian writings: 1 Clement, the Didache, Ignatius of Antioch, Polycarp, the Epistle of Barnabas, the Shepherd of Hermas.
Augustine of Hippo (354–430). The most influential theologian of the Latin West. Both Catholics and Protestants claim him, often for opposite reasons.
John Chrysostom (c. 347–407). The great preacher of Constantinople, whose homilies on Paul's epistles are foundational for Eastern Christianity and widely read in the West.
The New Advent Fathers Collection. A free online library of the Ante-Nicene, Nicene, and Post-Nicene Fathers in English translation. Available at newadvent.org/fathers.
CCEL (Christian Classics Ethereal Library). The Calvin College public domain collection of patristic and Reformation sources, freely downloadable. Available at ccel.org.
Ecumenical DocumentsThe Joint Declaration on the Doctrine of Justification (1999). The landmark agreement between the Catholic Church and the Lutheran World Federation, later affirmed by the World Methodist Council (2006), the World Communion of Reformed Churches (2017), and the Anglican Communion (2017). Essential reading for anyone who assumes the Reformation dispute is settled either way. Available on the Vatican website.
The World Council of Churches' Faith and Order Papers. A series of multilateral theological documents produced by Catholic, Orthodox, and Protestant theologians working together on historically divisive topics — baptism, Eucharist, ministry, the church, and others.
Lutheran-Catholic Dialogues in the United States. Decades of careful work by Catholic and Lutheran scholars producing agreed statements on topics including Scripture and Tradition, the Ministry, Mary, and the Saints.
Bible TranslationsDifferent traditions use different translations. For fairness, we often consult several. Standard Catholic translations include the New American Bible (Revised Edition), the Revised Standard Version, Catholic Edition, and the Douay-Rheims. Standard Protestant translations include the English Standard Version, the New International Version, and the New Revised Standard Version. The NRSV is used across Catholic, Orthodox, and mainline Protestant scholarship.
This list is not exhaustive. It is the working library Bristol Bridge returns to again and again. If you find yourself disagreeing with something we've written, please — read the sources. We would rather you read the traditions themselves than take our word for them.