The Eucharist Really Is Jesus
The question
When Jesus said 'this is my body,' wasn't he just speaking symbolically?
Scripture · John 6:54
He who eats my flesh and drinks my blood has eternal life, and I will raise him up at the last day.
A short answer
It's a fair question. Jesus used metaphors all the time — he called himself a door and a vine, and nobody thinks he's literally made of wood. So why take this one literally?
Because of how the crowd reacted, and how Jesus answered. In John 6 the people grumble: "How can this man give us his flesh to eat?" (John 6:52). That was Jesus' chance to say, "Relax, it's a figure of speech." Instead he doubled down. He switched to an even more graphic word — the Greek shifts from "eat" to "gnaw" or "chew" — and repeated himself four times. Then his disciples walked away (John 6:66), and he let them go. Jesus never lets people leave over a misunderstanding. He let them go because they understood him correctly and couldn't accept it.
At the Last Supper he made it concrete: "This is my body... this is my blood" (Matthew 26:26-28). Paul takes it dead seriously — receiving unworthily means being "guilty of the body and blood of the Lord" (1 Corinthians 11:27). You can't be guilty of profaning a symbol. The Church has held this from the start: the bread and wine truly become Christ, body, blood, soul, and divinity (CCC 1374). It's not that we made the words literal. It's that we never stopped taking Jesus at his word.