The acutal institution of the Eucharist occurs during the last supper.
If Christ can die on the cross and then be raised from the dead, is it not possible he could provide his Body and Blood under the appearances of bread and wine?
He was standing there in their midst..He was alive ,not dead when the Passover meal was celebrated.
John 6:51 I am the living bread which came down from heaven: if any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, which I will give for the life of the world.
John 8:12 Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life.
John 10:7 Then said Jesus unto them again, Verily, verily, I say unto you, I am the door of the sheep.
John 10:11 I am the good shepherd: the good shepherd giveth his life for the sheep.
John 15:1 I am the true vine, and my Father is the husbandman.
Jesus spoke to his disciples in symbols they understood...the bread....the Manna.....the blood...the sacrifices offered in the temple........The Shepherd an "unclean" individual in Jewish Law..also used as an OT example of the corrupt teachers and priests....the vine,the symbol of Israel,found over the door of the temple and on the coins
Eat my body.The Manna was a symbol of Me,He was saying..I sustained them in their wandering,I will give you eternal life He was the Blood about to be poured out as the sacrifice for their sins...He was the Blood of the Lamb on the altar......He called Himself living waters....like the water that flowed from the rock in the desert that was Christ..
He was showing Himself to a blind people . He was the Messiah written about in their sacred writings
We are to consume him.....we are to be filled with Him..not in a superstitious ritual,but in a daily communion with Him....."eat the scroll" (the word) take it into you "My word is life"