Catechism of the Catholic Church

294 Part Two C hapter T wo T he S acramental C elebration of the P aschal M ystery 1135 The catechesis of the liturgy entails first of all an under- standing of the sacramental economy (Chapter One). In this light, the innovation of its celebration is revealed. This chapter will there- fore treat of the celebration of the sacraments of the Church. It will consider that which, through the diversity of liturgical traditions, is common to the celebration of the seven sacraments. What is proper to each will be treated later. This fundamental catechesis on the sacramental celebrations responds to the first questions posed by the faithful regarding this subject: —Who celebrates the liturgy? — How is the liturgy celebrated? —When is the liturgy celebrated? —Where is the liturgy celebrated? A rticle 1 CELEBRATING THE CHURCH’S LITURGY I. W ho C elebrates ? 1136 Liturgy is an “action” of the whole Christ ( Christus totus ). Those who even now celebrate it without signs are already in the heavenly liturgy, where celebration is wholly communion and feast. The celebrants of the heavenly liturgy 1137 The book of Revelation of St. John, read in the Church’s liturgy, first reveals to us, “A throne stood in heaven, with one seated on the throne”: “the Lord God.” 1 It then shows the Lamb, “standing, as though it had been slain”: Christ crucified and risen, the one high priest of the true sanctuary, the same one “who offers and is offered, who gives and is given.” 2 Finally it presents “the river of the water of life . . . flowing from the throne of God and of the Lamb,” one of most beautiful symbols of the Holy Spirit. 3 1 Rev 4:2, 8; Isa 6:1; cf. Ezek 1:26-28. 2 Rev 5:6; Liturgy of St. John Chrysostom, Anaphora; cf. Jn 1:29; Heb 4:14-15; 10:19-2. 3 Rev 22:1; cf. 21:6; Jn 4:10-14. 795 1090 2642 662