📖 Biblical Definition
The threefold office (munus triplex) of Christ, by which He executes the work of redemption in the three mediatorial offices of prophet, priest, and king. The doctrine was systematized by Calvin (Institutes II.15) and codified in the Reformed confessions (Heidelberg Catechism Q. 31; Westminster Shorter Catechism Q. 23-26; Westminster Larger Catechism Q. 42-45). The three offices, anointed in the OT (prophets, priests, and kings were anointed; Christ is the Anointed One, the Messiah / Christ, who unites all three offices). (1) Christ as Prophet: He reveals to us, by His Word and Spirit, the whole will of God for our salvation (Deuteronomy 18:15, the prophet like Moses; Acts 3:22; Christ as the Word, John 1:1, 18; the one who declares the Father, John 1:18; the great teacher and revealer of God). (2) Christ as Priest: He once offered Himself a sacrifice to satisfy divine justice and reconcile us to God, and He continually intercedes for us (Hebrews 7-10; the great High Priest after the order of Melchizedek; the once-for-all sacrifice, Hebrews 9:26; 10:12; the continual intercession, Hebrews 7:25; Romans 8:34). (3) Christ as King: He subdues us to Himself, rules and defends us, and restrains and conquers all His and our enemies (Psalm 2; the King enthroned at the Father's right hand, Ephesians 1:20-22; Philippians 2:9-11; the reigning Christ who must reign till He hath put all enemies under His feet, 1 Corinthians 15:25). The threefold office corresponds to the comprehensive work of redemption: as Prophet, Christ addresses our ignorance (revealing God); as Priest, our guilt (atoning and interceding); as King, our bondage (subduing, ruling, and defending). The patriarchal-Reformed reader holds the substantive doctrine of the threefold office as a comprehensive framework for Christ's mediatorial work, and notes its application: the believer, united to Christ, shares in His anointing (the believer a prophet, priest, and king in derivative measure, 1 Peter 2:9; Revelation 1:6, kings and priests unto God); and the threefold office of Christ shapes the believer's response — receiving Christ's prophetic Word, resting in His priestly atonement and intercession, and submitting to His kingly rule.
📜 Webster 1828 Definition
The threefold office (munus triplex) of Christ as prophet (revealing God's will), priest (offering Himself and interceding), and king (ruling, defending, subduing enemies); systematized by Calvin (Institutes II.15) and the Reformed confessions; corresponds to our ignorance, guilt, and bondage.
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PROPHET, PRIEST, AND KING, n. phr. (Christology) The threefold office (munus triplex) of Christ. Systematized by Calvin (Institutes II.15); Heidelberg Q. 31; Westminster Shorter Catechism Q. 23-26. (1) Prophet: reveals the whole will of God for our salvation (Deuteronomy 18:15; Acts 3:22; John 1:18). (2) Priest: once offered Himself a sacrifice to satisfy justice and reconcile us, and continually intercedes (Hebrews 7-10; 7:25; Romans 8:34). (3) King: subdues us to Himself, rules and defends us, restrains and conquers His and our enemies (Psalm 2; Ephesians 1:20-22; 1 Corinthians 15:25). Corresponds to our ignorance (Prophet), guilt (Priest), bondage (King). The believer, united to Christ, shares derivatively in His anointing (1 Peter 2:9; Revelation 1:6).
📖 Key Scripture
Deuteronomy 18:15 — "The LORD thy God will raise up unto thee a Prophet from the midst of thee, of thy brethren, like unto me; unto him ye shall hearken."
Hebrews 7:25 — "Wherefore he is able also to save them to the uttermost that come unto God by him, seeing he ever liveth to make intercession for them."
Psalm 2:6 — "Yet have I set my king upon my holy hill of Zion."
1 Peter 2:9 — "But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light."
⚠️ Modern Corruption
The threefold office is the comprehensive framework for Christ's mediatorial work; the principal mishandling is the truncation that emphasizes one office (often the priestly) while neglecting the prophetic and kingly, producing an incomplete Christology.
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Prophet, priest, and king as a doctrine does not undergo lexical corruption. The principal mishandling is the truncation that emphasizes one office while neglecting the others, producing an incomplete Christology. Some traditions emphasize Christ's priestly office (the atonement and intercession) almost to the exclusion of His prophetic and kingly offices, producing a Christ who saves from guilt but is not received as the revealer of God's will (Prophet) or submitted to as the ruling Lord (King). The patriarchal-Reformed reader holds the substantive doctrine of the threefold office in its fulness: Christ is Prophet, Priest, and King, addressing the whole of our need (our ignorance by His prophetic revealing, our guilt by His priestly atonement and intercession, our bondage by His kingly subduing, ruling, and defending). The threefold office shapes the believer's whole response to Christ: he receives Christ's prophetic Word (submitting his mind to Christ's revelation), rests in Christ's priestly work (trusting the once-for-all atonement and the continual intercession), and submits to Christ's kingly rule (obeying the Lord who reigns over all). The kingly office in particular is often neglected in soft-evangelical Christology that wants a Savior but not a Lord; the patriarchal-Reformed reader holds the full kingship of Christ, who reigns at the Father's right hand and must reign till He has put all enemies under His feet (1 Corinthians 15:25), and to whose kingly rule the whole of life, household, church, and civil order is subject.
🔗 Greek & Hebrew Roots
Munus triplex; Calvin Institutes II.15; Heidelberg Q. 31; Westminster Shorter Catechism Q. 23-26; Christ as Prophet (revealing), Priest (atoning, interceding), King (ruling, defending, subduing); addresses our ignorance, guilt, bondage.
Usage
"Prophet, priest, and king: the threefold office (munus triplex) of Christ."
"Prophet (reveals God's will), Priest (atones and intercedes), King (rules, defends, subdues)."
"Corresponds to our ignorance, guilt, and bondage; the believer shares derivatively (1 Peter 2:9)."