Catechism of the Catholic Church

278 Part Two For it is in the liturgy, especially in the divine sacrifice of the Eucharist, that “the work of our redemption is accom- plished,” and it is through the liturgy especially that the faithful are enabled to express in their lives and manifest to others the mystery of Christ and the real nature of the true Church. 4 What does the word liturgy mean? 1069 The word “liturgy” originally meant a “public work” or a “service in the name of/on behalf of the people.” In Christian tradition it means the participation of the People of God in “the work of God.” 5 Through the liturgy Christ, our redeemer and high priest, continues the work of our redemption in, with, and through his Church. 1070 In the New Testament the word “liturgy” refers not only to the celebration of divine worship but also to the proclamation of the Gospel and to active charity. 6 In all of these situations it is a question of the service of God and neighbor. In a liturgical celebra­ tion the Church is servant in the image of her Lord, the one “ leitourgos ”; 7 she shares in Christ’s priesthood (worship), which is both prophetic (proclamation) and kingly (service of charity): The liturgy then is rightly seen as an exercise of the priestly office of Jesus Christ. It involves the presentation of man’s sanctification under the guise of signs perceptible by the senses and its accomplishment in ways appropriate to each of these signs. In it full public worship is performed by the Mystical Body of Jesus Christ, that is, by the Head and his members. From this it follows that every liturgical celebra- tion, because it is an action of Christ the priest and of his Body which is the Church, is a sacred action surpassing all others. No other action of the Church can equal its efficacy by the same title and to the same degree. 8 Liturgy as source of life 1071 As the work of Christ liturgy is also an action of his Church. It makes the Church present and manifests her as the visible sign of the communion in Christ between God and men. It engages the faithful in the new life of the community and involves the “con- scious, active, and fruitful participation” of everyone. 9 4 SC 2. 5 Cf. Jn 17:4. 6 Cf. Lk 1:23; Acts 13:2; Rom 15:16, 27; 2 Cor 9:12; Phil 2:14-17, 25, 30. 7 Cf. Heb 8:2, 6. 8 SC 7 § 2-3. 9 SC 11. 783 1692