📖 Biblical Definition
The Keys of the Kingdom are the symbol of ecclesial authority Christ gave first to Peter and then to the whole apostolic band: "whatsoever thou shalt bind on earth shall be bound in heaven" (Matthew 16:19; cf. 18:18; John 20:23). The keys are not magical; they are the church’s authority to declare what God’s Word binds and looses — to preach the gospel (opening the kingdom to the penitent), to administer the sacraments, and to exercise discipline (shutting the kingdom against the impenitent until repentance). Rome wrongly hoarded them in the papal office; Protestants rightly recognize they belong to every faithful local church under Christ. The keys are wielded in council, by Scripture, with fear.
📜 Webster 1828 Definition
Authority to declare gospel-binding and loosing.
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The keys given by Christ to Peter and through him to the assembled church (Matt 16:19; 18:18; John 20:23) — the authority to bind and loose by declaring on earth what heaven has already determined regarding sin, inclusion, and ministry; exercised through faithful preaching and discipline.
📖 Key Scripture
Matthew 16:19 — "And I will give unto thee the keys of the kingdom of heaven: and whatsoever thou shalt bind on earth shall be bound in heaven."
Matthew 18:18 — "Whatsoever ye shall bind on earth shall be bound in heaven: and whatsoever ye shall loose on earth shall be loosed in heaven."
John 20:23 — "Whose soever sins ye remit, they are remitted unto them; and whose soever sins ye retain, they are retained."
⚠️ Modern Corruption
Either claimed as papal monopoly or denied entirely; missing the Reformed understanding that the keys are exercised through preaching and church discipline.
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The keys are not magic; they are the gospel-authority to declare bound or loosed by reference to Christ's word. Reformed theology distinguishes the keys of preaching (proclamation) and of discipline (admission/exclusion). Both are church-authority, not personal.
🔗 Greek & Hebrew Roots
Greek kleis — key.
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['Greek', 'G2807', 'kleis', 'key']
['Greek', 'G932', 'basileia', 'kingdom']
Usage
"Preach and discipline as exercise of the keys."
"The keys are shared, not personal."