What does the Bible say about the Eucharist?
The Bible teaches that the Eucharist is truly the Body and Blood of Christ. At the Last Supper Jesus said, "This is my body... this is my blood" (Matthew 26:26-28), and in John 6 He insisted His flesh is real food and drink, without which we have no life in us. St. Paul warns that receiving it unworthily profanes the very Body and Blood of the Lord.
The Bible presents the Eucharist not as a mere symbol or memory but as the true Body and Blood of Jesus Christ, given as food for the life of the world. This teaching runs from Jesus' own words at the Last Supper through St. Paul's letters to the earliest Christian worship.
The Catholic Church has always read these texts literally, in continuity with the plain sense of Scripture and the unbroken witness of the apostolic Tradition (CCC 1373-1381).
Jesus' Own Words
At the Last Supper, Christ took bread and said, "Take ye, and eat. This is my body," and over the cup, "Drink ye all of this. For this is my blood of the new testament, which shall be shed for many unto remission of sins" (Matthew 26:26-28). Luke and Mark record the same words, and St. Paul, writing perhaps earlier than the Gospels, transmits an identical formula received from the Lord (1 Corinthians 11:23-25). The consistency of this testimony across four independent sources shows how central this teaching was to the earliest Church.
Jesus does not say the bread represents His body; He says it is His body. The Church takes Him at His word (CCC 1376).
The Bread of Life Discourse
In John 6, after multiplying loaves, Jesus teaches at length: "I am the living bread which came down from heaven... he that eateth this bread shall live for ever" (John 6:51). When the crowd is scandalized, He does not soften His language but intensifies it: "Except you eat the flesh of the Son of man, and drink his blood, you shall not have life in you" (John 6:54). Many disciples left Him over this hard saying, yet Jesus let them go rather than explain it away, confirming He meant it literally (John 6:60-67).
This discourse forms the biblical foundation for the Church's teaching on the Real Presence (CCC 1355).
St. Paul and the Early Church
St. Paul asks, "The chalice of benediction, which we bless, is it not the communion of the blood of Christ? And the bread, which we break, is it not the partaking of the body of the Lord?" (1 Corinthians 10:16). He also warns that whoever eats the bread or drinks the cup unworthily "shall be guilty of the body of the Lord" and eats judgment to himself, a warning that makes sense only if the Eucharist is truly Christ's Body and Blood (1 Corinthians 11:27-29).
The book of Acts describes the earliest believers persevering "in the breaking of bread" (Acts 2:42), a phrase the Church has long understood as referring to the Eucharistic liturgy, the source and summit of Christian life (CCC 1324).
Sources & Further Reading
Scripture: Matthew 26:26-28 · John 6:51-58 · 1 Corinthians 10:16 · 1 Corinthians 11:23-29 · Acts 2:42
Catechism of the Catholic Church: CCC 1324 · CCC 1355 · CCC 1373-1381 · CCC 1376
Go Deeper
Bible lessons that explore this topic further: