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Why Catholic? Because True.
Catholic Definitions Abbess Abbey Abbot Accident Absolute Actual Grace Adoration Amen Angel Anointing Apologetics Apostasy Apostolic Apostolic Constitution Apostolic Exhortation Apostolic Letter Art Assent Authority Avarice Baptism Benign Bible Bishop Brotherly Love Bull Calumny Canon Law Capital Sins Capital Virtues Cardinal Virtues Catechesis Catholic Charity Chastity Chrism Christ’s Commands Church Cloister Codex Communio Compassion Completion Story Concomitance Concupiscence Confession Confirmation Consecration Conscience Conservatism Continence Convent Corporal Works of Mercy Counsel Custody of the Senses Deacon Deaconess Death Detraction Dicastery Diligence Divine Office Doctrine Dogma Double Effect Dulia Economy of Salvation Ecumenical Ecumenical Council Encyclical Epistle Encyclica Letter Envy Eternity Eucharist Evangelization Ex Cathedra Ex Opere Operantis Ex Opere Operato Faith Fear Fideism Form Fortitude Four Last Things Friar Friday Abstinence Fruits of the Holy Spirit Gifts of the Holy Spirit Gluttony Good Grace Heaven Hell Holy Heresy Holy Eucharist Holy Orders Hope Humility Hyperdulia Hypostatic Union Immortal Impassible Indulgence Infallible Intellectual Virtues Intrinsic Joy Judgment Justice Justification Knowledge Latria Letter Liberality Limbo Liturgy Longanimity Lust Magisterium Man Marriage Matrimony Matter Meek Mercy Message Mild Modernism Modesty Monastery Monk Mortal Sin Motu Proprio Nun Obedience One Orders Original Sin Pallium Parable Pasch Patience Pauline Privilege Peace Penance Piety Pope Prayer Precept Preternatural Pride Priest Prudence Purgatory Purity Rationalism Religious Reparation Revelation Rule Sacrament Sacramental Presence Sacred Tradition Sacrifice Saint Sanctifying Grace Science Scrupulosity Sin Sister Sloth Soul Spirit Spiritual Direction Spiritual Works of Mercy Substance Supernatural Synoptic Telepathy Temperance Theological Virtues Theology Transubstantiation Trinity Triumphalist Truly, truly Ultramontane Understanding Vatican II Vademecum Vanity Veneration Venial Sin Victim Virtues Wisdom Words of Institution Worship Wrath
The Catholic teaching that the grace of a sacrament is always conferred by the sacrament itself. Ex opere operato literally means “from the work performed.”
Provided that the Catholic receiving the sacrament freely chooses to receive its graces, the grace conferred by the sacrament will be efficacious (effective).
It is not that the sacrament is a mere sign that the grace has already been given, or that the virtue of the priest or recipient determines the grace. Rather, Christ works through the sacrament itself.
Compare with ex opere operantis, which refers to pious actions in general.
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