Words of Institution in the context of "Ethiopian Orthodox Tewahedo Church"

The epiclesis (also spelled epiklesis; from Ancient Greek: ἐπίκλησις, lit. 'surname' or 'invocation') refers to the invocation of one or several gods. In ancient Greek religion, the epiclesis was the epithet used as the surname given to a deity in religious contexts. The term was borrowed into the Christian tradition, where it designates the part of the Anaphora (Eucharistic Prayer) by which the priest invokes the Holy Spirit (or the power of God's blessing) upon the Eucharistic bread and wine in some Christian churches. In most Eastern Christian traditions, the Epiclesis comes after the Anamnesis (remembrance of Jesus' words and deeds); in the Western Rite it usually precedes. In the historic practice of the Western Christian Churches, the consecration is effected at the Words of Institution, though during the rise of the Liturgical Movement, many denominations introduced an explicit epiclesis in their liturgies.

Catholic spirituality includes the various ways in which Catholics live out their Baptismal promise through prayer and action. The primary prayer of all Catholics is the Eucharistic liturgy in which they celebrate and share their faith together, in accord with Jesus' instruction: "Do this in memory of me." The Catholic bishops at the Second Vatican Council decreed that "devotions should be so drawn up that they harmonize with the liturgical seasons, accord with the sacred liturgy, are in some fashion derived from it, and lead the people to it, since, in fact, the liturgy by its very nature far surpasses any of them." In accord with this, many additional forms of prayer have developed over the centuries as means of animating one's personal Christian life, at times in gatherings with others. Each of the religious orders and congregations of the Catholic church, as well as lay groupings, has specifics to its own spirituality – its way of approaching God in prayer to foster its way of living out the Gospel.

Sacramental bread, also called Communion bread, Communion wafer, Sacred host, Eucharistic bread, the Lamb or simply the host (Latin: hostia, lit. 'sacrificial victim'), is the bread used in the Christian ritual of the Eucharist and the body of Christ. Along with sacramental wine, it is one of two elements of the Eucharist. The bread may be either leavened or unleavened, depending on tradition.

Catholic theology generally teaches that at the Words of Institution the bread's substance is changed into the Body of Christ, a process known as transubstantiation. Conversely, Eastern Christian theology generally views the epiclesis as the point at which the change occurs.