Priesthood
If Jesus Is the One Mediator, Why Does Christianity Need Priests?
Examine 1 Timothy 2:5, Christ's High Priesthood, the priesthood of believers, and whether the New Testament establishes a separate mediating Christian priesthood.
ONE MEDIATOR
Paul's statement is remarkably direct.
First Timothy says there is one God and one mediator between God and humanity, the man Christ Jesus.
That verse is frequently placed at the center of debates about Christian priesthood, confession, saints, intercession, and clergy.
But the word mediator should not be stretched into a claim that Christians can never pray for one another, teach one another, or help one another approach God. The same chapter begins by urging prayers and intercessions for others.
The issue is therefore not whether one Christian may spiritually assist another. It is the unique mediating role belonging to Christ.
Paul identifies one mediator between God and humanity: Christ Jesus.
HEBREWS GOES EVEN FURTHER
The New Covenant already has its High Priest.
Hebrews is saturated with priestly language. It discusses priests, sacrifices, covenant, sanctuary, blood, intercession, and access to God.
Its answer is centered on Jesus.
Christ is the great High Priest. His sacrifice is decisive. His priesthood does not pass from one dying officeholder to another. Through Him believers are invited to draw near to God.
If a continuing human sacerdotal system is essential to Christian access to God, Hebrews is an obvious place to expect that system to be explained. Who Changed the Church? considers its Christ-centered priesthood evidence crucial.
Jesus is the great High Priest, and believers are therefore invited to approach God's throne with confidence.
Christ's priesthood is enduring, and He continually intercedes for those who approach God through Him.
THE OTHER CHRISTIAN PRIESTHOOD
Peter does call Christians priests—but notice whom he includes.
First Peter describes believers as living stones being built into a spiritual house and a holy priesthood. Later in the same chapter he calls them a royal priesthood.
That is not language reserved for a clerical subset of the congregation.
The manuscript therefore identifies two prominent New Testament priesthood realities: Jesus as the great High Priest and God's people collectively as a priesthood offering spiritual sacrifices.
The question is where a third category appears: a distinct Christian sacerdotal caste mediating between those believers and Christ.
BUT THE CHURCH HAS LEADERS
Rejecting a mediating priestly caste does not mean rejecting church leadership.
The New Testament plainly establishes leadership. Congregations appoint elders. Overseers must meet qualifications. Shepherds guard and care for the flock. Teachers teach. Evangelists proclaim the gospel.
Who Changed the Church? does not flatten those roles into a leaderless church.
Its argument instead focuses on the vocabulary and function of the office. In Acts 20, Paul calls the Ephesian elders and tells those same men that the Holy Spirit made them overseers to shepherd the church.
Titus likewise moves from appointing elders to describing the overseer. The manuscript sees elder, overseer, and shepherd as descriptions of the same local leadership rather than steps in a sacerdotal hierarchy.
The Ephesian elders are described as overseers charged with shepherding the church.
Paul moves directly from appointing elders to the qualifications of the overseer.
PRIEST IS NOT JUST ANOTHER WORD FOR ELDER
The distinction matters because the New Testament already possesses priestly vocabulary.
The manuscript spends considerable time on terminology because later Christian language can make historical differences difficult to see.
The Greek term associated with elder is presbuteros. The New Testament also has priestly terminology associated with hiereus and related words.
Who Changed the Church? argues that when the apostles describe local Christian leaders, they consistently use the elder-overseer-shepherd vocabulary rather than appointing those men as sacrificing priests.
Meanwhile, explicitly priestly New Covenant language is concentrated on Christ and on believers collectively.
WHAT DOES A MEDIATOR DO?
The question becomes sharper when access, sacrifice, and forgiveness are attached to the office.
Calling a church leader a priest can be merely linguistic unless particular priestly functions accompany the title.
The theological issue becomes more substantial when a clerical office is understood to offer sacrificial ministry, administer necessary absolution, or function as a required channel of sacramental access.
Those are the kinds of claims that make 1 Timothy and Hebrews especially relevant.
The manuscript asks whether those functions continue the apostolic eldership or represent a later development in how Christian leadership was understood.
THE HISTORICAL TRAIL
The book argues that the later priestly system did not appear fully formed on Pentecost.
Who Changed the Church? traces a progression rather than imagining an overnight transformation.
The New Testament provides plural local elders or overseers. Clement remains an early post-apostolic checkpoint. Ignatius clearly distinguishes one bishop from presbyters and deacons. Later writers display increasingly developed episcopal authority.
By Cyprian's era, the manuscript argues that sacerdotal language and episcopal authority have become substantially more developed.
That chronology is why the question 'Why do Christians need priests?' cannot be answered only by pointing to the antiquity of the practice. The investigation must ask how far back the specific office and functions can actually be demonstrated.
- Christ is explicitly identified as the one mediator.
- Hebrews presents Jesus as the enduring great High Priest.
- Believers collectively are described as a holy and royal priesthood.
- The New Testament still establishes real local leadership through elders, overseers, and shepherds.
- Those leaders are not described in the apostolic writings as a separate sacrificing priesthood.
- The manuscript argues that sacerdotal Christian office developed as church hierarchy developed.
THE REAL TEST
Christian help and Christian mediation are not automatically the same thing.
A preacher can teach someone about Christ without replacing Christ. An elder can shepherd someone without becoming that person's High Priest. Christians can pray for one another without becoming rival mediators.
The disputed point is whether God established an additional sacerdotal office as a necessary religious intermediary.
Who Changed the Church? answers that question by returning to the foundation: identify the offices and functions actually established by the apostles, and then compare later structures with them.
That method makes the historical development of Christian priesthood testable rather than merely traditional.
Why It Matters
If Jesus is the one mediator, Christianity can still have teachers, elders, shepherds, evangelists, and believers who pray for one another. The New Testament clearly contains all of those things. The narrower question is whether it also establishes a separate sacerdotal class through whom ordinary Christians must approach God. Who Changed the Church? argues that it does not: Christ is the great High Priest, believers collectively form a priesthood, and local leaders are described as elders, overseers, and shepherds. The later emergence of a distinct priestly office therefore becomes a historical development worth investigating.