A. Origin of the Holy Eucharist
The Eucharist also called Holy Communion, the Sacrament of the Altar, the Blessed Sacrament, the Lord's Supper, and other names, is a Christian sacrament or ordinance. It is reenacted in accordance with Jesus' instruction at the Last Supper as recorded in several books of the New Testament, that his followers do in remembrance of Him as when he gave his disciples bread, saying, "This is my body", and gave them wine, saying, "This is my blood".
The Last Supper appears in all three Synoptic Gospels: Matthew, Mark, and Luke; and in the First Epistle to the Corinthians, while the last-named of these also indicates something of how early Christians celebrated what Paul the Apostle called the Lord's Supper. As well as the Eucharistic dialogue in John chapter 6. Paul the Apostle and the Lord's Supper
In his First Epistle to the Corinthians (c 54-55), Paul the Apostle gives the earliest recorded description of Jesus' Last Supper: "The Lord Jesus on the night when he was betrayed took bread, and when he had given thanks, he broke it, and said, 'This is my body which is for you. Do this in remembrance of me.' In the same way also the cup, after supper, saying, 'This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me'." Gospels
The synoptic gospels, first Mark and then Matthew and Luke depict Jesus as presiding over the Last Supper. References to Jesus' body and blood foreshadow his crucifixion, and he identifies them as a new covenant. In the gospel of John, the account of the Last Supper has no mention of Jesus taking bread and wine and speaking of them as his body and blood; instead it recounts his humble act of washing the disciples' feet, the prophecy of the betrayal, which set in motion the events that would lead to the cross, and his long discourse in response to some questions posed by his followers, in which he went on to speak of the...