Show me one time where the word (to eat or chew, trogo) in the Greek is used symbolically anywhere in the New Testament, the Old Testament, the Septuagint, or even in ancient secular literature. If every time it is used in the bible and ancient literature it is used in a literal sense, we must use it that way in exegeting John 6. If it has never been used in the way that Protestants impose on John 6, then the figurative sense of eating flesh can not be possible.
Scripture is clear that Christ meant to eat his flesh, I found it interesting when reading Zechariah 9 in Catholic bibles it reads they will drink blood like wine, now this whole passage is talking of the coming of Christ, yet in no protestant bible is this verse repeated but all have corrupted the text and it’s meaning.
This is taken of course from the Septuagint in which there is no doubt that this is what Christ and the Apostles read from.
a few other’s that show Christ’s intent…
Exodus 12:8, 46, Leviticus 6:17-19 - Under the Old Covenant the sacrificial lamb was eaten
1 Corinthians 5:7 - Jesus is the sacrificial lamb of the New Covenant
John 6:53 - Under the New Covenant the sacrificial lamb must also be eaten
John 6:35-71 - The Eucharist is promised
John 6:35, 48, 51 - Jesus says, “I am the Bread of Life”
John 6:51, 53, 54, 55, 56, 57 - Jesus says, “The bread which I give is my flesh”
John 6:66 - Jesus disciples took him literally and He didn’t correct them
Isaiah 9:20 - To symbolically eat ones flesh meant to do harm
Isaiah 49:26 - To symbolically eat ones flesh meant to do harm
Micah 3:3 - To symbolically eat ones flesh meant to do harm
Matthew 26:26-28 - The Eucharist is instituted, “This is my body this is my blood”
1 Corinthians 10:16 - The bread and wine are a participation in the body and blood of Christ
1 Corinthians 11:23-26 - This is my body this is my blood
1 Corinthians 11:27-29 - Receiving unworthily is profaning the body and blood of the Lord
God bless.