The Holy Spirit convicts sinners (Jn 16:8), but he does so by means of the Word he inspired, which is profitable for such conviction (2 Tm 3:16). The Holy Spirit regenerates dead hearts, but he does so by means of his Word. He does not “zap” new life in a person’s heart independently of the Word—”faith comes from hearing, and hearing through the word of Christ” (Rom 10:17). Part of the Spirit’s work of creating new life is putting his law within new believers and writing it on their hearts (Jer 31:33).

Many of the Holy Spirit’s works in history unique in unfolding God’s eternal plan in past history. The purpose of ordering the plans of God accomplished by the Spirit through creation, revelation, and special empowerment have been finished. Creation is complete, the Spirit-inspired Word is complete, and Spirit empowerment functioned at key transitional periods in the history of redemption that finished their intended purpose. Therefore, we should not expect these sorts of extraordinary works until the next stage in redemptive history—when the Anointed King comes again.

However, some of the ordinary activities of the Spirit have been at work since the beginning of time and will continue until the eternal kingdom. The most notable of these is the Holy Spirit’s work in salvation.

Scripture appropriates specific acts to each divine person of the godhead in the salvation of God’s elect. The Father planned salvation and sent his Son into the world to save his people. The Son took on flesh, lived a perfect life, and died to pay the penalty of sin, accomplishing redemption for his people. And as with other aspects of God’s eternal plans, the Spirit actively works to order and complete God’s plan of salvation in the lives of his elect.

This work begins with convicting sinners. Jesus promised that he would send the Spirit to “convict the world concerning sin and righteousness and judgment” (Jn 16:8). Without the Spirit’s conviction, sinners would have no spiritual awareness of their need of salvation. Conviction is the first step in bringing sinful, disordered souls into order and harmony with God’s perfect will.

Regeneration

Next, the Spirit gives new life. Jesus specifically identified the Spirit as the one who gives new birth (Jn 3:5, 8). Likewise, Paul describes him as “the Spirit of life” (Rom 8:2) and tells us in Titus 3:5 that God saved us “by the washing of regeneration and renewal of the Holy Spirit.” This work of the Spirit ties directly to his very first work—creation. The regenerating work of the Spirit is his recreation of dead sinners into new creations (2 Cor 5:17).

Some theologians also refer to this regenerating act of the Spirit as “illumination.” This doctrine of illumination is one area where many Christians have unbiblical thinking in which they assume illumination means that the Spirit will reveal to us the meaning of Scripture. However, the reality is that Spirit illumination is part of the Spirit’s regeneration that happens at conversion.

One of the key texts is 1 Corinthians 1:18–2:16. In this passage, Paul describes the fact that “the word of the cross is folly to those who are perishing, but to us who are being saved it is the power of God” (1 Cor 1:18). This passage clearly teaches that a key difference between believers and unbelievers is the fact that unbelievers simply do not recognize the truthfulness, beauty, and authority of God’s Word (specifically the gospel), while a believer is one who has come to recognize Scripture as such, not because of any human persuasion, but simply through “the Spirit and of power” (2:4).

Another key passage is 1 Corinthians 2. Verses 10–13 speak of the inspiration of Scripture by means of apostles and prophets. However, verses 14–16 do touch on what we may describe as Spirit illumination.

The natural person does not accept the things of the Spirit of God, for they are folly to him, and he is not able to understand them because they are spiritually discerned. 15 The spiritual person judges all things, but is himself to be judged by no one. 16 “For who has understood the mind of the Lord so as to instruct him?” But we have the mind of Christ.

The key phrase is “does not accept the things of the Spirit of God.” When the natural man reads Scripture, he does not accept it as God’s authoritative revelation. Rather, he sees it as foolishness. He does not understand its spiritual significance.

On the other hand, the spiritual person recognizes the Word of God for what it is and therefore submits himself to it. These verses do not speak of intellectual understanding but spiritual understanding. If we want to use the term illumination to describe what’s going on in these verses, it refers to the Spirit’s regenerating work to cause his elect to recognize the significance and authority of the written Word of God. Furthermore, this act of the Spirit is not something that necessarily happens in separate points of time as we read the Word; rather, it is something that comes as a result of the new birth—the Spirit gives us new life and enlightens our hearts and minds to recognize the significance of his Word.

In other words, 1 Corinthians 2 refers to two acts of the Spirit: inspiration, whereby the authors of Scripture wrote the very words of God, and illumination, whereby believers are enabled to recognize the spiritual significance of the Word of God.

Second Corinthians 4 makes a similar assertion, this time using explicit language of “enlightening.” The gospel is “veiled to those who are perishing” (2 Cor 4:3), Paul argues. Believers accept and submit to the gospel only because God has enlightened their hearts:

For God, who said, “Let light shine out of darkness,” has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ. (2 Cor 4:6)

This is illumination—a work of God’s Spirit upon a believer whereby he recognizes the beauty and glory of the gospel and therefore willingly submits himself to it. It should not surprise us that the same divine person who brought order out of chaos and light out of darkness at the beginning of time is the same one who enlightens dark hearts and brings order to disordered souls in conversion.

John Calvin argued, “Man’s mind can become spiritually wise only in so far as God illumines it. . . . The way to the kingdom of God is open only to him whose mind has been made new by the illumination of the Holy Spirit.”1

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