From Manna to the Last Supper: The Eucharist in Scripture

Melchizedek Offers Bread and Wine

One of the earliest biblical connections between priesthood, bread, and wine appears in Genesis 14:18. Melchizedek, king of Salem and priest of God Most High, brings out bread and wine and blesses Abram.

The passage does not describe the Eucharist itself. However, Scripture later connects Christ with the priesthood of Melchizedek, especially in the Letter to the Hebrews. Catholics therefore see Melchizedek as part of the Old Testament pattern that prepares for Christ, the eternal High Priest, and the bread and wine He chooses at the Last Supper.

The Passover Lamb

The Passover is one of the most important Old Testament backgrounds for understanding Christ's sacrifice. In Exodus, the Israelites are delivered from slavery through the Passover. A lamb is sacrificed, and its blood is associated with their deliverance.

Centuries later, John the Baptist sees Jesus and declares in John 1:29:

Jesus is the true Lamb whose sacrifice brings deliverance not merely from earthly slavery, but from sin and death. It is within the setting of the Passover that Jesus gives His disciples the Eucharist, placing His own sacrifice at the center of the new deliverance He brings.

Manna in the Wilderness

After Israel leaves Egypt, God feeds His people with manna in the wilderness. This miraculous food sustains them on their journey. Jesus later draws upon this history in John 6.

The manna sustained physical life. Jesus presents Himself as something greater. He is the true bread from heaven who gives eternal life.

Mark 14:22-24: "This Is My Body"

At the Last Supper, Jesus takes bread, blesses it, breaks it, and gives it to His disciples.

He then gives them the cup and identifies it with His blood of the covenant. For Catholics, the directness of these words matters. Jesus identifies what He gives His disciples with His Body and Blood.

He also connects what is happening at the table with the sacrifice He is about to offer on the cross. The Eucharist is therefore inseparable from the Passion. The Body given in the Eucharist is the Body given for us. The Blood of the covenant is the Blood Christ pours out.

Luke 22:19-20: "Do This in Memory of Me"

Jesus identifies the bread with His Body, which is given for His disciples, and then commands:

He also describes the cup in terms of the new covenant in His Blood. These words bring together remembrance, sacrifice, covenant, worship, Body, and Blood.

Jesus does not present the Last Supper as an isolated event that ends that evening. His command to "do this" points toward its continuation in the worship of the Church. The Eucharist is not simply something Christians remember. It is something Christ commanded His Church to do.

John 6:35: "I Am the Bread of Life"

Jesus declares:

He presents Himself as the answer to humanity's deepest hunger. This claim goes beyond physical food. Jesus offers the life that comes from God and satisfies a hunger that ordinary bread cannot satisfy.

John 6:51-58: His Flesh Is True Food

Jesus identifies Himself as the living bread that came down from heaven and says that the bread He will give is His flesh for the life of the world. His listeners begin disputing among themselves about how He can give them His flesh to eat.

Jesus continues by speaking about eating His flesh and drinking His blood. He describes His flesh as true food and His blood as true drink. He promises eternal life and speaks of the profound union between Himself and the person who receives Him.

Later in the chapter, some disciples struggle with the teaching and stop following Him. Even then, Jesus does not withdraw what He has said. For Catholics, the realism of this language is an important part of understanding Christ's true presence in the Eucharist.

John 6 becomes especially significant when read alongside the Last Supper. In John 6, Jesus promises His flesh as food and His blood as drink.

At the Last Supper, He takes bread and says, "This is my body," then gives the cup as His blood of the covenant.

Acts 2:42, 46-47: The Breaking of Bread

Acts 2:42 describes the believers as devoted to the teaching of the apostles, fellowship, the breaking of bread, and prayer. Verses 46-47 continue that picture by describing Christians gathering together, breaking bread, praising God, and sharing a common life.

Jesus commands His disciples to "do this in memory of me," and the Church that emerges after Pentecost continues gathering for the breaking of bread. The Eucharistic life of the Church is already visible within the apostolic Church.

1 Corinthians 10:16-17: Participation in the Body and Blood of Christ

Paul describes the cup of blessing as a participation in the Blood of Christ and the bread as a participation in the Body of Christ.

He does not describe Communion merely as remembering Christ. He speaks of participation in Christ's Body and Blood.

The Eucharist also reveals the unity of the Church. Because Christians share in one bread, Paul explains, they are one body.

1 Corinthians 11:23-26: "I Received From the Lord What I Also Handed On to You"

Paul tells the Corinthians that the Eucharistic teaching he gives them is something he himself received and handed on. He recounts the Last Supper, including Christ's words over the bread and cup.

The Eucharist is not appearing generations later as a new Christian practice. It is already part of the faith being transmitted during the apostolic age. Paul also explains that whenever Christians eat this bread and drink the cup, they proclaim the death of the Lord until He comes.

1 Corinthians 11:28-29: "Discerning the Body"

Immediately afterward, Paul gives a serious warning about receiving.

Christians should examine themselves before eating the bread and drinking the cup. Paul warns against receiving without properly discerning the body.

For Catholics, his words are consistent with the belief that the person approaching Holy Communion is approaching Christ Himself. Holy Communion should therefore never be approached casually. Repentance, reverence, spiritual preparation, and, when necessary, Confession are connected to receiving the Eucharist worthily.

St. Ignatius of Antioch: The Eucharist Is the Flesh of Christ

St. Ignatius of Antioch was a bishop and martyr writing near the beginning of the second century.

In his Letter to the Smyrnaeans, he describes those who reject Christian teaching about the Eucharist:

Ignatius identifies that flesh with the flesh of Jesus that suffered for our sins and was raised by the Father. His testimony places explicit belief in the Eucharist as the flesh of Christ remarkably close to the apostolic age.

St. Justin Martyr: Not Common Bread and Drink

Around the middle of the second century, St. Justin Martyr described Christian worship in his First Apology.

He describes Christians gathering on Sunday, hearing readings from the apostles and prophets, praying together, giving thanks, and receiving the Eucharist. Justin explains:

He then identifies the Eucharistic food with the flesh and blood of Jesus Christ. By around A.D. 155, Christians were gathering for a recognizable Eucharistic liturgy and explicitly distinguishing the Eucharist from ordinary bread and wine.

St. Irenaeus of Lyons: "No Longer Common Bread"

Later in the second century, St. Irenaeus of Lyons writes:

Irenaeus also speaks about the human body being nourished by the Body and Blood of the Lord. His Eucharistic teaching forms part of his defense of the goodness of creation and the resurrection of the body.