The Office of Christ and the Office of the Spirit: A Necessary Distinction

A familiar diagnosis circulates whenever Christians speak of assurance. Believers grow anxious, the reasoning goes, because they confuse justification with sanctification, mistaking the ongoing process of becoming holy for the finished verdict of being declared righteous. That diagnosis is sound as far as it reaches, and Theology in Focus has treated it at length elsewhere. This essay presses behind it to a prior confusion, one that the standard distinction between justification and sanctification does not by itself resolve. The deeper error is not that believers confuse two stages of salvation. It is that they confuse two divine offices and the two works those offices perform. They credit to the Holy Spirit, whose office is to apply salvation within, the assurance that rests only on the finished work of Christ accomplished outside them. The thesis of this essay is that assurance is stabilized only when the office of Christ and the office of the Spirit are held distinct and in their proper order.

A Distinction Before the Distinction

The customary treatment sets justification beside sanctification and asks the reader to keep the two apart: justification is the once for all declaration of righteousness, and sanctification is the lifelong work of being made holy. That framing is correct, and it is important. Yet it locates both realities within the believer's own storyline, as two things that happen to one person over time. The question this essay raises comes earlier. Before we distinguish what God declares from what God works in us, we must distinguish who does what. The Son accomplished a work for us that stands complete and outside us. The Spirit performs a work in us that is genuine, necessary, and, in this life, unfinished. To collapse these two offices is a mistake of a different kind from collapsing two stages, and it does more direct damage to assurance, because it moves the ground of confidence from a finished fact to an ongoing feeling.

What Christ Accomplished

The work of the Son is objective, external, and complete. On the cross He bore the curse and satisfied the demand of divine justice, and His last word from the cross was not a beginning but a conclusion: "It is finished" (John 19:30, KJV).¹ The apostle Paul locates the believer's righteousness entirely in what Christ has done, describing redemption "through the redemption that is in Christ Jesus: whom God hath set forth to be a propitiation through faith in his blood" (Romans 3:24-25, KJV). The result is a settled standing before God: "Therefore being justified by faith, we have peace with God through our Lord Jesus Christ" (Romans 5:1, KJV).² Paul can even gather the whole of salvation under the name of Christ, writing that of God He "is made unto us wisdom, and righteousness, and sanctification, and redemption" (1 Corinthians 1:30, KJV).³ This work happened at a particular place and time, apart from anything the believer contributes, and it cannot be increased, repeated, or improved. It is, in the older theological language, a work accomplished for the believer, not a work transacted within him.

What the Spirit Applies

The work of the Spirit is, by contrast, subjective, internal, and, until glory, incomplete. What the Son accomplished, the Spirit applies. He regenerates the dead heart, indwells the believer, and carries forward the slow work of conforming the Christian to the likeness of the Son. Paul describes the beginning of this work as a washing and renewal: God "saved us, by the washing of regeneration, and renewing of the Holy Ghost" (Titus 3:5, KJV).⁴ The Spirit also bears an inward testimony, for "the Spirit itself beareth witness with our spirit, that we are the children of God" (Romans 8:16, KJV).⁵ This work is real and no believer may despise it. But it is ongoing rather than finished, uneven in its felt intensity, and never in this life brought to completion. Sanctification advances and stalls; the sense of the Spirit's presence rises and falls. That variability is proper to a work still in progress.

It is important to add at once that the Spirit's work does not supplement the work of Christ, as though redemption were left incomplete and the believer's inward progress supplied the remainder. The Spirit adds nothing to what was finished on the cross. His office is to convey and to seal what Christ has already secured, to bring the accomplished redemption home to the individual and to begin its transforming effects. The relation between the two works is therefore one of application, not of completion. The Son did the work; the Spirit delivers it. When this order is respected, the ongoing and incomplete character of sanctification poses no threat to the believer's standing, because that standing was never resting on the progress of the inward work.

The Category Error and Its Two Failures

The confusion this essay names occurs when the believer looks to the Spirit's ongoing work for what only the Son's finished work can supply. When assurance is grounded in the degree of inward transformation, one of two distortions follows, and they run in opposite directions. The first is moralism. If standing before God seems to depend on the progress of holiness, the anxious believer concludes that he must become holy enough to be accepted, and the finished verdict is quietly turned back into a wage to be earned. The second is mysticism. If assurance is read off the intensity of felt experience, the believer trusts the warmth of an inward impression as the proof of salvation, and confidence rises and collapses with the emotional weather. Both failures share a single root. Each looks inward, to the Spirit's work, for a ground that God has placed outward, in the work of Christ.

Where Assurance Rests

The remedy is not to diminish the Spirit's work but to give it its right office. Assurance has a ground and it has a confirmation, and these must not be interchanged. The ground of assurance is the finished work of Christ, received by faith and standing wholly outside the believer's performance and mood. The confirmation of assurance is the witness and fruit of the Spirit within, which testify to the reality of that standing but do not constitute it.⁶ Romans 8:16 places the Spirit exactly here: He witnesses with our spirit to a sonship already secured; He is not the foundation of the sonship but its inward seal. When the Spirit's testimony is treated as the ground rather than the confirmation, the whole structure becomes unstable, for a foundation must not move, and inward experience always moves. When the ground is Christ and the confirmation is the Spirit, the believer is free to endure seasons of dryness without concluding that salvation has failed, because the fact on which he rests never depended on the feeling in the first place.

The older divines expressed this by distinguishing the ground of faith from the evidence of faith. The ground is that on which the soul rests for acceptance with God, and it is Christ and his righteousness received by faith, apprehended as a promise standing outside the believer. The evidence is the fruit that shows faith to be genuine, including the inward work of the Spirit, love toward God, and a changed life. Evidence has its proper and important place, for a faith that produced no fruit would be dead. But evidence cannot bear the weight of the ground. To rest the whole of assurance upon the evidence is to build on ground that shifts, whereas to rest it upon Christ is to build on ground that cannot move. The Spirit is honored, not slighted, when his witness is received as the confirmation of a foundation that another has laid.

Conclusion

The distinction between justification and sanctification is worth keeping, but it does not reach the root of the trouble by itself. Beneath it lies the distinction between the Son who accomplished redemption and the Spirit who applies it, between a finished work done for the believer and a continuing work done within him. When these two offices are collapsed, assurance drifts either toward the labor of moralism or toward the tremor of mysticism. When they are held distinct and rightly ordered, the believer looks to Christ for his standing and welcomes the Spirit for his transformation, resting his confidence where it belongs and receiving the inward witness as the confirmation it was given to be.

Notes

1. All Scripture quotations are from the King James Version. On John 19:30, the perfect tense of the Greek verb rendered "it is finished" denotes a completed action with abiding results.
2. Romans 3:24-25; Romans 5:1. On redemption as an accomplished work received by faith, see John Murray, Redemption Accomplished and Applied (Grand Rapids: Eerdmans, 1955), 51-59.
3. 1 Corinthians 1:30. On the believer receiving every benefit of salvation in union with Christ by the Spirit, see John Calvin, Institutes of the Christian Religion 3.1.1.
4. Titus 3:5. On the Spirit as the applying agent of Christ's finished work, see Calvin, Institutes 3.1.4.
5. Romans 8:16. The inward witness of the Spirit confirms a sonship already secured in Christ rather than establishing it.
6. On assurance as grounded in the promise of God in Christ and confirmed by the inward witness of the Spirit, see the Westminster Confession of Faith 18.2.