Regeneration by Grudem part 2

B. The Exact Nature of Regeneration Is Mysterious to Us

Exactly what happens in regeneration is mysterious to us. We know that somehow we who were spiritually dead (Eph. 2:1) have been made alive to God and in a very real sense we have been “born again” (John 3:3, 7; Eph. 2:5; Col. 2:13). But we don’t understand how this happens or what exactly God does to us to give us this new spiritual life. Jesus says, “The wind blows where it wills, and you hear the sound of it, but you do not know whence it comes or whither it goes; so it is with every one who is born of the Spirit” (John 3:8).

Scripture views regeneration as something that affects us as whole persons. Of course, our “spirits are alive” to God after regeneration (Rom. 8:10), but that is simply because we as whole persons are affected by regeneration. It is not just that our spirits were dead before—we were dead to God in trespasses and sins (see Eph. 2:1). And it is not correct to say that the only thing that happens in regeneration is that our spirits are made alive (as some would teach), for every part of us is affected by regeneration: “If any one is in Christ, he is a new creation; the old has passed away, behold, the new has come” (2 Cor. 5:17).

Because regeneration is a work of God within us in which he gives us new life it is right to conclude that it is an instantaneous event. It happens only once. At one moment we are spiritually dead, and then at the next moment we have new spiritual life from God. Nevertheless, we do not always know exactly when this instantaneous change occurs. Especially for children growing up in a Christian home, or for people who attend an evangelical church or Bible study over a period of time and grow gradually in their understanding of the gospel, there may not be a dramatic crisis with a radical change of behavior from “hardened sinner” to “holy saint,” but there will be an instantaneous change nonetheless, when God through the Holy Spirit, in an unseen, invisible way, awakens spiritual life within. The change will become evident over time in patterns of behavior and desires that are pleasing to God.

In other cases (in fact, probably most cases when adults become Christians) regeneration takes place at a clearly recognizable time at which the person realizes that previously he or she was separated from God and spiritually dead, but immediately afterward there was clearly new spiritual life within. The results can usually be seen at once—a heartfelt trusting in Christ for salvation, an assurance of sins forgiven, a desire to read the Bible and pray (and a sense that these are meaningful spiritual activities), a delight in worship, a desire for Christian fellowship, a sincere desire to be obedient to God’s Word in Scripture, and a desire to tell others about Christ.

People may say something like this: “I don’t know exactly what happened, but before that moment I did not trust in Christ for salvation. I was still wondering and questioning in my mind. But after that moment I realized that I did trust in Christ and he was my Savior. Something happened in my heart.” Yet even in these cases we are not quite sure exactly what has happened in our hearts. It is just as Jesus said with respect to the wind—we hear its sound and we see the result, but we cannot actually see the wind itself. So it is with the working of the Holy Spirit in our hearts.