Church and Sacraments
Church and Sacraments
This domain tests the Church as mystery and sacrament of salvation, the four marks, the seven sacraments, and the distinctions between validity, liceity and fruitfulness. It expects conciliar language and sacramental precision.
Core rules
- The Church is one, holy, catholic and apostolic. Lumen Gentium 8 teaches that the Church of Christ subsists in the Catholic Church while recognizing genuine ecclesial elements elsewhere.
- Christ instituted seven sacraments and acts in them. Ex opere operato means the sacrament's effect does not depend on the minister's personal holiness (Trent, Session 7).
- Validity requires proper matter, form, intention and minister; fruitfulness depends on the recipient's disposition (CCC 1127-1128).
- The Eucharist is source and summit of the Christian life. Trent (Session 13) teaches the real, true and substantial presence and uses transubstantiation to name the change (CCC 1376).
Worked example
A Catholic in grave sin receives Communion at a family wedding. Is the sacrament valid? Reasoning: validity concerns the minister, matter, form and intention, not the recipient's state of grace. A validly ordained minister using wheat bread and grape wine with the proper Eucharistic prayer confects the sacrament. The communicant's unrepented grave sin makes reception objectively unworthy and may be sacrilegious (1 Cor 11:27-29); pastoral discipline may also restrict public reception. Verdict: valid, but not fruitful and not rightly received.
Traps
Confusing validity with liceity or fruitfulness; treating ex opere operato as automatic holiness; calling sacraments mere symbols; consubstantiation; ignoring the minister's intention; assuming all Christian communions have interchangeable Eucharist.