Eucharist in the Catholic Church Eucharist in the Catholic Church The Eucharist in the Catholic Church is celebrated as "the source and summit" of the Christian life. The Eucharist is consecrated daily (except on Good Friday, when consecration takes place on Maundy Thursday, but is distributed during the Mass of the Presanctified) during the celebration of Mass, the eucharistic liturgy. The term "Eucharist" is also used for the bread and wine when transubstantiated (their substance having been changed), according to Catholic teaching, into the body and blood of Jesus Christ. "At the Last Supper, on the night he was betrayed, our Saviour instituted the Eucharistic
Origin of the Eucharist 'received from the Lord' (1 Corinthians 11:23), through Cephas (Galatians 1:18), what he 'handed over' (1 Corinthians 11:23) to his hearers. … He reminds his hearers of what he already had taught as authoritative, a teaching 'from the Lord' and presumably warranted by the earliest 'pillars': in that sense, what he hands on is not his own, but derives from his highest authority, 'the Lord' (11:23)." Eugene LaVerdiere wrote: "That is how Paul introduced the tradition, presenting himself as a link in the chain of Eucharistic tradition. He received ("paralambano") the tradition of Eucharist in the early 40s while in