A learner’s guide
- Christian family
- Ancient apostolic communion
- Historical setting
- The apostolic church in Rome and the Latin West
Historical origin
Where this tradition came from
Catholics understand their church as continuous with the apostolic church. Its distinct Western form developed around Rome, the Latin theological tradition, and the papacy. The estrangement between the Latin West and Greek East hardened into the East–West Schism, conventionally dated to 1054; the sixteenth-century Reformation produced further divisions in Western Christianity.
Authority
How teaching is discerned
Sacred Scripture and Sacred Tradition form one entrusted deposit of faith. The bishops in communion with the pope serve this deposit through the church’s teaching office, or Magisterium. The pope has a unique ministry of universal unity. As defined at the First Vatican Council (1870), papal infallibility applies only when the pope solemnly defines a doctrine of faith or morals to be held by the whole church. The college of bishops in union with him shares this charism, and most papal teaching is not of this kind.
Salvation
How God saves and transforms
Salvation is entirely initiated and sustained by God’s grace, received through faith and baptism, and lived in love. Catholic theology joins justification and sanctification within a lifelong transformation in Christ. Good works are the fruit of grace and a real cooperation with it; when God rewards them as merit, he is “crowning his own gifts” (Catechism 2006–2011). Those who die in God’s grace but are not yet fully purified undergo a final purification after death, called purgatory.
The church
Leadership and belonging
An episcopal and worldwide structure of deacons, priests, and bishops. Each bishop oversees a local church, while the bishop of Rome, the pope, has universal pastoral responsibility in communion with the college of bishops.
Sacraments and ordinances
Baptism and the Lord’s Supper
Baptism
Baptism with water in the Trinitarian name, normally including infants, brings incorporation into Christ and the church, forgiveness of sins, and new birth. It is received once.
Communion / Eucharist
The Eucharist is the source and summit of Christian life. Catholics teach that bread and wine truly become Christ’s body and blood while their appearances remain, a change described as transubstantiation. The Eucharist is also sacrifice, memorial, presence, and communion.
Gathered life
What worship may feel like
The Mass joins the Liturgy of the Word and the Liturgy of the Eucharist. Worship follows the liturgical year, with set prayers, appointed Scripture readings, sacred art, and music, and it takes local cultural forms across several Catholic rites.
Distinctive emphases
- Communion with the bishop of Rome
- Seven sacraments
- Scripture and apostolic Tradition
- The communion of saints and honour given to Mary
- Natural-law and social-teaching traditions
Read with care
Internal diversity and a common misconception
Where members differ
The Catholic Church includes the Latin Church and 23 Eastern Catholic churches, with different liturgies and disciplines. Religious orders, spiritual movements, and theological schools add further variety while sharing communion and dogmatic teaching.
Do not assume
Catholics do not teach that human effort purchases salvation or that Mary is divine. Official teaching says salvation begins with grace, worship belongs to God alone, and honour shown to saints differs from adoration.
Go to the source
Read this tradition in its own words
These links lead to confessions, catechisms, or teaching resources produced by churches within this tradition. They open in a new tab so you can keep this guide available.