The term do epiclesis do comes from the Greek: Epi = on, Kaleo = call.?? The theological reflection of the tradition of the Church has coined this concept to its theological terminology in order to designate the invocation of the Holy Spirit upon the gifts of bread and wine to transform them into the body and blood of Christ. The noun epiclesis does not appear in the New Testament, where if the verbal form is found in some passages from acts of the Apostles and some Epistles of St. Paul. There speaks of invoking the name of God or of Christ: do to them that are sanctified in Christ Jesus, called to be saints, with few in any place call upon the name of Jesus Christ, our Lord, us and them do ( 1Cor 1, 2 ).?? Everyone who calls on the name of God be saved would (Act 2, 21 ) and now, do you hope? Get up, receives the baptism, and wash away your sins, calling on his name would (Act 22, 17 ). She is not found in the Apostolic Fathers. First appears in Ireneo: do because as well as bread, that is of the Earth, receiving the invocation ( 41 epiclesis;? of God, is no longer ordinary bread, but Eucharist. So also our bodies, to receive the Eucharist, are no longer corruptible, but that they participate in the resurrection [1]. Epiclesis, then, comes to designate the invocation of the holy spirit which we find in many Eucharistic liturgies of antiquity. Recent studies on the epiclesis, has led to the conclusion that the oldest epiclesis belonged to the Syriac of the Apostles XII liturgy, to half of the 4th century, after the story of the institution.