"On the first day of the week when we gathered to break bread, Paul spoke to them because he was going to leave on the next day, and he kept on speaking until midnight" (Acts 20:7).
"Then the two recounted what had taken place on the way and how he was made known to them in the breaking of the bread" (Luke 24:35).
"The cup of blessing that we bless, is it not a participation in the blood of Christ? The bread that we break, is it not a participation in the body of Christ?" (First Epistle of St. Paul to the Corinthians 10:16)
"For I received from the Lord what I also handed on to you, that the Lord Jesus, on the night he was handed over, took bread, and, after he had given thanks, broke it and said, 'This is my body that 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.' For as often as you eat this bread and drink the cup, you proclaim the death of the Lord until he comes" (First Epistle of St. Paul to the Corinthians 11:23-26).
The celebration of the Last Supper that happens in the liturgy is not merely symbolic or commemorative, but breaks through the veil that separates heaven and earth as the Body, Blood, Soul, and Divinity of Jesus Christ become present for all to consume and adore following the consecration of the bread and wine. Yes, the Eucharist is Jesus Christ himself, the Manna from Heaven, the Bread of Life, the Word Made Flesh born in Bethlehem, the House of Bread. He is the perfect sacrifice, the perfect oblation, whom we offer to the Father at every liturgy which he commanded us to do when he said “do this in memory of me” (Luke 22:19). Early Christians were accused of, and persecuted for, being cannibals because they confessed to eating the flesh and drinking the blood of Christ which apostolic Christians still do to this day, following their example (and that of St. Paul too, as shown above).