Keys to the Kingdom

Introduction 

The word “the keys of the kingdom” appears only twice in the entire New Testament, yet it has shaped two thousand years of theology, ecclesiology, art, and power. Most people know the first instance: Jesus’ words to Peter in Matthew 16:19—“I will give you the keys of the kingdom of heaven, and whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.” The second, less quoted but no less explosive, comes two chapters later when Jesus tells all the disciples, “Truly I tell you, whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven” (Matthew 18:18). Same authority, different recipients. One man or the whole community? A single keyring or a ring passed hand to hand? The entire history of the Church—papal claims, Protestant revolt, Orthodox synodality, Pentecostal spontaneity—turns on how we answer that question.

But the image of “keys” did not begin with Jesus. It is older than the Temple, older than David, older even than Israel itself. To understand what Jesus meant when He handed Peter (and later the church) the keys of the kingdom, we must walk backward through the corridors of Scripture and forward through the smoke of history. Only then do the keys begin to turn in the lock.

I. The Key-Bearer in the Ancient World

In the palace of any ancient Near Eastern king there was an official whose title is usually translated “steward” or “vizier.” In Egypt he was the “overseer of the seal”; in Babylon the “holder of the keys.” Isaiah describes just such a man in the royal court of Judah:

> “In that day I will call my servant Eliakim the son of Hilkiah… I will place on his shoulder the key of the house of David; he shall open, and none shall shut; and he shall shut, and none shall open.” (Isaiah 22:20–22)

Eliakim is given the key that hangs on a scarlet cord across his shoulder. It is not a literal iron key for a literal door (palaces had dozens of doors); it is the sign of delegated authority. When the king is away or incapacitated, the man with the key speaks with the king’s voice. He admits whom he chooses to the treasury, the harem, the council chamber. He excludes whom he chooses. The key is therefore not primarily about “letting people into heaven”; it is about who governs in the king’s name while the king is absent.

This is the exact background Jesus invokes when He says to Peter, “I will give you the keys of the kingdom of heaven.” The absent king is Jesus Himself, ascended to the Father. The steward is Peter (and, in the second instance, the apostolic college). The palace is now the renewed Israel, the Church. The treasury is the deposit of divine revelation and grace. The power to open and shut is the authority to teach, to forgive, to discipline, to include and (when necessary) to exclude.

II. Peter and the Singular Gift

Matthew’s Gospel is careful to place the promise of the keys immediately after Peter’s confession: “You are the Christ, the Son of the living God.” Jesus replies, “Blessed are you, Simon Bar-Jonah! For flesh and blood has not revealed this to you, but my Father who is in heaven. And I tell you, you are Peter, and on this rock I will build my church…” (Matthew 16:17–18).

Three gifts are given in rapid succession:

1. A new name: Petros, “Rock.”  

2. The foundation stone of the Church.  

3. The keys.

They are inseparable. The man who, by divine revelation, confesses the true identity of Jesus is renamed, established as foundational, and invested with the steward’s authority. Rome will later insist that the keys belong to Peter and his successors alone. The Orthodox will argue that Peter represents the faith of all the apostles and that the keys are exercised in synod. Protestants will often spiritualize the keys entirely, saying they belong to every believer who proclaims the gospel. Each reading contains a shard of truth, but none can be understood apart from the original Palestinian-Jewish context of royal delegation.

Yet even in Matthew’s own Gospel the picture is not static. Two chapters later, after Jesus teaches about fraternal correction and the necessity of treating an unrepentant sinner “as a Gentile and a tax collector,” He extends the binding-and-loosing authority to the whole community gathered in His name (Matthew 18:15–20). The keys are not revoked from Peter; they are widened. The steward is still steward, but the household now participates in the decisions of the household.

III. Binding and Loosing: The Rabbinic Backdrop

The word  “bind” and “loose” were technical terms in first-century Judaism. When a rabbi declared something “bound,” he forbade it; when he “loosed” it, he permitted it. The school of Hillel was famous for “loosing” many regulations that the school of Shammai wished to keep “bound.” To be given power to bind and loose was therefore to be entrusted with authoritative interpretation of Torah.

Jesus takes this rabbinic language and escalates it. Peter (and later the church) is not merely authorized to interpret the Law of Moses; he is authorized to govern the new covenant community in light of the kingdom that has arrived in Jesus. The Sanhedrin could exclude a man from the synagogue; the Church can exclude a man from the kingdom—or readmit him through repentance and forgiveness. The stakes are no longer national; they are eschatological.

This is why the earliest Christian writings treat the forgiveness of sins as an act of jurisdiction. When the risen Jesus breathes on the apostles and says, “If you forgive the sins of any, they are forgiven them; if you withhold forgiveness from any, it is withheld” (John 20:23), He is handing them the same authority under a different metaphor. Keys, binding and loosing, retained and forgiven sins—all are images of the same reality: the stewardship of reconciliation.

IV. The Keys in Action: Acts and the Early Church

The Book of Acts functions as the first demonstration of the keys being turned in the lock.

- In Acts 2 Peter preaches at Pentecost and “opens” the kingdom to Israel: three thousand are baptized.  

- In Acts 3–4 Peter, with John, heals and preaches, exercising authority over both body and soul.  

- In Acts 5 Peter pronounces judgment on Ananias and Sapphira; the keys can shut as well as open.  

- In Acts 8 Philip preaches in Samaria, but it is Peter (and John) who come down to impart the Holy Spirit—confirming that the Samaritan believers are fully inside the kingdom.  

- In Acts 10 Peter receives the vision of the sheet and opens the door of faith to the Gentiles by baptizing Cornelius.  

- In Acts 15 Peter speaks decisively at the Jerusalem Council, and James ratifies his decision, but it is Peter’s “opening” statement that sets the trajectory for the Church’s mission to the nations.

In every case the keys are not a static possession but a living authority exercised in concrete decisions that shape who is in and who is out of the new covenant people.

V. The Patristic Consensus and the Rise of Rome

By the late second century the church fathers almost universally acknowledge Peter as the rock and the key-bearer, but they do not yet read this as the exclusive prerogative of the Roman bishop. Tertullian (c. 200) can say that the power of the keys was given to Peter personally and then through him to the whole Church. Cyprian of Carthage (mid-third century) famously declares, “The chair of Peter is the chair of unity,” yet he also insists that all bishops share in Peter’s authority because they all sit on the one cathedra of truth.

It is only after Constantine, when the bishop of Rome begins to function as the de facto steward of a Christian empire, that the keys migrate visibly to the Lateran and then to St. Peter’s. Pope Leo the Great (440–461) is the first to speak systematically of the Roman pontiff as the heir of Peter’s keys in a juridical sense. The forged Donation of Constantine (eighth century) and the crowning of Charlemagne by Pope Leo III on Christmas Day 800 dramatically symbolize the transfer: the emperor receives the sword from the hand of the man who wears the keys at his belt.

VI. The Medieval Zenith and the Fracture

By the thirteenth century the symbolism of the keys is everywhere. They appear crossed beneath the papal tiara on coins, seals, and cathedral doors. Dante places the angel who guards Purgatory with a gold and silver key—the gold for authority over sin, the silver for discernment—explicitly citing Matthew 16. Thomas Aquinas can write that the power of the keys extends to the opening of heaven itself, because the priest in the sacrament of penance unlocks the treasury of Christ’s merits.

Yet the very success of the papal claim plants the seeds of revolt. When the keys are used to excommunicate entire nations, to depose kings, to sell indulgences, the steward begins to look less like Eliakim and more like Shebna, the corrupt official Isaiah condemned. The Reformation is, among many other things, a cry of “Return the keys!” Luther insists that the keys were never given to a hierarchy but to the congregation that hears the gospel and pronounces absolution. Calvin places the keys in the hands of the consistory of elders. The Anabaptists hand them to every believer who can open the Scriptures.

VII. The Keys in Orthodox and Catholic Re-readings

The Orthodox never denied the primacy of Peter; they simply refused to separate primacy from conciliarity. For them the keys are held by the whole episcopate in communion, with the bishop of Rome as a first among equals until the schism of 1054. After the schism the keys remain symbolically present in every Orthodox icon of Christ Pantocrator—He holds a Gospel book in one hand and blesses with the other, but the keys are not depicted because they belong now to the synod, not to any single see.

Vatican II marks a seismic Catholic re-appropriation. Lumen Gentium §22 teaches that the college of bishops, in union with the pope, exercises supreme authority over the Church. The keys are still entrusted to Peter’s successor, but they are not exercised apart from the college any more than Peter exercised them apart from the Twelve. The pope remains the visible point of unity, yet the council deliberately echoes Matthew 18:18 when it speaks of the bishops’ shared power to bind and loose.

VIII. Pentecostal Fire and the Democratization of the Keys

In the twentieth century the Azusa Street Revival and its global offspring insist that every Spirit-baptized believer carries the keys. When a tongues-speaking grandmother in Lagos prays for a sick child and the child is healed, she has “opened” something that was shut. When a storefront preacher in São Paulo declares a drug addict forgiven and the addict walks free, the keys have turned again. The danger, of course, is that keys multiply until every individual becomes a petty pope, accountable to no one. The gift becomes chaos.

IX. Toward a Theology of the Keys Today

So where are the keys of the kingdom now?

They have never left the nail-scarred hands of the risen Christ. He is the true Key-bearer, the one who was dead and is alive forevermore, who holds the keys of Death and Hades (Revelation 1:18). All authority in heaven and on earth has been given to Him (Matthew 28:18). The keys we carry—whether as successor of Peter, as college of bishops, as elders, as congregation, as individual believer—are on loan. We are under-stewards of the Great Steward.

This means three things simultaneously:

1. The keys are real. There is still authority to admit and to exclude, to forgive and to retain sins, to declare what is consistent with the gospel and what is not. The Church cannot function without them any more than a household can function without locks and keys.

2. The keys are communal. They were given first to Peter, but always in the context of the Twelve, and then to the whole Church gathered in Christ’s name. No one wields them alone. Even the pope speaks infallibly only when he speaks with the college, consciously or implicitly.

3. The keys are for opening. The terrifying power to shut (anathema, excommunication, the “left hand” of the keys) exists, but it exists to protect the flock and to bring the wayward to repentance. The normal motion of the keys is to swing doors wide. Every sacrament, every absolution, every faithful proclamation of the gospel is a turning of the lock so that one more prisoner can walk free.

 X. A Final Image

In the book of Revelation the risen Christ appears to John holding seven stars in His right hand and a sharp double-edged sword coming out of His mouth. At His waist, unseen but implied, hang the keys He won when He stormed the gates of Death. One day He will hand those keys to the martyrs and the faithful who have washed their robes in His blood, and the gates of the New Jerusalem will never be shut, day or night.

Until then, the Church fumbles with borrowed keys—sometimes dropping them, sometimes using them as weapons, sometimes turning them with trembling love in the lock of a human heart. But every time the door opens and a sinner enters the banquet, every time a prodigal is embraced, every time a leper is declared clean, the angels lean over the ramparts of heaven and whisper to one another, “Listen. Somewhere down there, someone just used the keys again.”

And the King, smiling, nods.