Growing in the Grace of Christ: Maturity as the Ordinary Expectation

One of the most persistent misunderstandings of the Christian life is the idea that salvation brings a believer to a fixed spiritual condition in which nothing more remains to be done. A person is forgiven, receives eternal life, and then simply waits for heaven. According to this view, conversion is the conclusion of the Christian life rather than its beginning.

The New Testament presents a very different picture. Salvation establishes the believer in Christ, but it also begins a lifelong work of transformation. The Christian is accepted fully because of what Christ has accomplished, yet he is continually being changed by the Holy Spirit into the likeness of the One who saved him. Grace does not leave a person where it found him. It receives the sinner freely and then begins the patient work of making him more like Jesus Christ.

Peter's final exhortation to the church expresses this calling plainly: "But grow in grace, and in the knowledge of our Lord and Saviour Jesus Christ" (2 Peter 3:18). Growth is not presented as an unusual achievement reserved for a few mature Christians. It is the ordinary expectation of the Christian life. The command assumes that believers must not remain spiritually static. They are to increase in their understanding of Christ, deepen in their dependence upon grace, and mature in the character that grace produces.

Growth and the Ground of Acceptance

This growth must be distinguished carefully from the basis of our acceptance before God. Christians do not grow in order to become justified. They grow because they have already been justified through faith in Christ. Their standing rests upon His righteousness, not upon their progress. The work of Christ is complete, but the work of the Spirit within the believer continues.

Paul preserves this order when he writes, "Work out your own salvation with fear and trembling. For it is God which worketh in you both to will and to do of his good pleasure" (Philippians 2:12-13). The apostle does not tell believers to work for their salvation, as though Christ had left the work unfinished. He tells them to work out what God is already working within them. Christian growth is therefore neither self-improvement nor passive resignation. It is the believer's active response to the gracious activity of God.

Conformity to Christ as the Goal

The goal of that activity is not simply that Christians become more disciplined, informed, or respectable. God's purpose is that they become like His Son. Paul describes believers as those whom God has predestined "to be conformed to the image of his Son" (Romans 8:29). Christ is both the source and the pattern of Christian maturity. We do not become greater by becoming more impressive in ourselves. We grow as the life and character of Christ become increasingly evident within us.

This explains why genuine spiritual growth often involves the diminishing of self rather than its enlargement. John the Baptist summarized the proper direction of every Christian life when he said of Christ, "He must increase, but I must decrease" (John 3:30). Growth in grace does not make a believer more self-sufficient. It makes him more conscious of his dependence upon Christ. It does not cultivate spiritual pride but humility, because every genuine virtue produced in the believer is the fruit of divine grace.

The Gradual Work of the Spirit

The Holy Spirit accomplishes this transformation gradually. Paul writes that believers, beholding the glory of the Lord, "are changed into the same image from glory to glory, even as by the Spirit of the Lord" (2 Corinthians 3:18). The language describes an ongoing movement. The believer is not transformed into the likeness of Christ all at once. The Spirit works through Scripture, prayer, worship, obedience, fellowship, correction, suffering, and providence to reshape the mind and character over the course of a life.

This process is sometimes so gradual that the believer may struggle to recognize it. Growth in the natural world is often imperceptible from one day to the next. A tree does not appear to change while we watch it, yet over time its roots deepen, its branches spread, and its fruit becomes visible. Spiritual growth often follows the same pattern. God works beneath the surface before His work becomes apparent to others.

Yet gradual growth must not be confused with the absence of growth. The New Testament repeatedly warns against prolonged spiritual infancy. The writer of Hebrews rebuked believers who had remained dependent upon elementary instruction when, by reason of time, they should have become teachers. They still required milk when they should have been able to receive strong meat (Hebrews 5:12-14). Time alone does not produce maturity. A person may be a Christian for many years while remaining undeveloped in understanding, unstable in judgment, and inconsistent in obedience.

The Means God Has Appointed

Growth requires nourishment. Peter therefore exhorts believers, "As newborn babes, desire the sincere milk of the word, that ye may grow thereby" (1 Peter 2:2). Scripture is not merely information added to the Christian life. It is the appointed means by which the mind is renewed, error is corrected, faith is strengthened, and the character of Christ is formed within His people. A believer who neglects the Word of God should not expect to mature spiritually any more than a body deprived of food should be expected to grow strong.

Christian maturity also becomes visible in character. Paul's description of the fruit of the Spirit is not a list of extraordinary religious experiences but a portrait of Christlike life: "love, joy, peace, longsuffering, gentleness, goodness, faith, meekness, temperance" (Galatians 5:22-23). These qualities cannot be manufactured by outward conformity alone. They are called fruit because they grow from the life of the Spirit within. Where the Spirit rules, the nature of Christ increasingly appears.

Growth does not mean that the Christian reaches sinless perfection in this life. Paul, despite his maturity, confessed that he had not already attained the goal. Yet he refused complacency: "Forgetting those things which are behind, and reaching forth unto those things which are before, I press toward the mark" (Philippians 3:13-14). The mature Christian is not the one who believes he has arrived, but the one who knows the direction in which he must continue pressing.

The Christian life is therefore neither static acceptance nor restless self-salvation. It is a life securely grounded in the finished work of Christ and continually transformed by the active presence of the Holy Spirit. God receives believers completely in His Son, and then patiently forms the character of His Son within them. The grace that saves is also the grace that teaches, corrects, strengthens, and changes.

We must never imagine that there is nothing more of Christ to know or no further likeness to Him into which we may grow. The riches of His character cannot be exhausted, and the Spirit's work is not finished while any part of us remains unlike Him. Christian maturity is not becoming great in ourselves. It is becoming increasingly transparent to the life of Jesus Christ, until His truth governs our minds, His love shapes our affections, and His obedience becomes the pattern of our lives. To grow in grace is to become less occupied with ourselves and more fully conformed to the One in whom all grace is found.