Becoming a Christian is a birth, and like every birth it is meant to be followed by growth. No one is content when a baby stays a baby; God is no more content when his children remain spiritual infants. He calls every believer to grow — to become stronger, deeper, more like Jesus over time. “Grow in the grace and knowledge of our Lord and Savior Jesus Christ” (2 Peter 3:18), Scripture commands. But how? Many Christians long to grow yet feel stuck, unsure what to actually do. The good news is that spiritual growth, while it is finally God’s work in us, follows patterns God has clearly revealed. Here is how a believer grows.
Growth is normal, expected, and gradual
First, understand that growth is the normal Christian experience, and that it takes time. Just as a newborn is meant to mature, “like newborn infants, long for the pure spiritual milk, that by it you may grow up into salvation” (1 Peter 2:2). No one expects an infant to run a marathon; nor should we be crushed that we are not yet who we long to be. Growth is gradual, often imperceptible day by day, like a tree adding its rings.
This should free us from two errors: despair when progress feels slow, and pride when it feels fast. God is patient with the process, and we should be too. He “who began a good work in you will bring it to completion at the day of Jesus Christ” (Philippians 1:6). Your growth does not finally depend on your strength but on his faithfulness; he finishes what he starts. So do not measure yourself against others or grow discouraged by setbacks. Keep facing the right direction, and leave the pace to God.
Feed on the word of God
Just as the body grows by food, the soul grows by feeding on Scripture. There is no substitute for regular time in the Bible, where God speaks, corrects, encourages, and shapes us. The writer to the Hebrews rebuked believers who should have matured but remained infants because they had neglected the word — they still needed “milk, not solid food,” when by then they ought to have been teachers (Hebrews 5:12–14). Spiritual maturity comes to those who train themselves on the word until they can digest its deeper truths.
So make Scripture your daily bread. Read it, think about it, obey it, and let it dwell in you richly. The person who “meditates day and night” on God’s word becomes “like a tree planted by streams of water that yields its fruit in its season” (Psalm 1:2–3). You cannot grow strong on a starvation diet, and no amount of activity makes up for a neglected Bible. Feed the soul, and it will grow.
Stay close to Christ, the source of all growth
All real growth flows from union with Jesus. We do not grow by gritting our teeth in our own strength but by staying connected to him, as a branch to a vine. “Abide in me, and I in you. As the branch cannot bear fruit by itself, unless it abides in the vine, neither can you, unless you abide in me... apart from me you can do nothing” (John 15:4–5). The secret of a fruitful life is not effort divorced from Christ but a moment-by-moment dependence on him.
Paul puts it the same way: “as you received Christ Jesus the Lord, so walk in him, rooted and built up in him and established in the faith” (Colossians 2:6–7). Notice — we grow the same way we began, by faith in Christ and reliance on his grace. Growth is not graduating beyond the gospel to something more advanced; it is sinking our roots ever deeper into the same Christ who saved us. Keep near to him in prayer, in his word, at his table, and the life of the Vine will flow into the branch.
Give yourself to prayer
Prayer is the breath of the growing soul. Through it we draw near to God, cast our cares on him, seek his help, and are changed in his presence. A prayerless Christian will be a stunted one, no matter how much else they do; a praying Christian, however weak in other ways, will grow. Prayer keeps the lines of communication open between the soul and its source of life, and it is in prayer that we most consciously depend on God rather than ourselves.
You need not pray eloquently or at great length to begin; you need only pray honestly and regularly. Bring God your worship, your confession, your requests, your gratitude. Talk to him throughout the day, not only in set times. As with Scripture, consistency matters more than intensity. A little prayer offered daily over years shapes a soul more than occasional bursts. And prayer and the word feed each other: we speak to God in prayer, and he speaks to us in his word, and the two together are the great engines of growth.
Pursue holiness and put sin to death
Growth also has a moral dimension: we grow as we increasingly turn from sin and pursue Christlikeness. Peter lists the qualities that should be increasing in us — “supplement your faith with virtue, and virtue with knowledge, and knowledge with self-control, and self-control with steadfastness, and steadfastness with godliness” and love (2 Peter 1:5–7). And he adds, “if these qualities are yours and are increasing, they keep you from being ineffective or unfruitful” (2 Peter 1:8). Real growth shows up in changed character.
This means taking sin seriously — not tolerating what God hates, but confessing it, forsaking it, and cooperating with the Spirit as he makes us new. Paul urges us to “train yourself for godliness,” for while bodily training has some value, “godliness is of value in every way” (1 Timothy 4:7–8). The word train implies effort and discipline. Growth is not passive; we are to actively put off the old and put on the new, always in reliance on grace. Holiness and growth go together: we become more mature as we become more like Christ.
Don’t measure growth by your feelings
One of the great discouragements to growth is judging it by how we feel. On days we feel spiritually warm, we assume we are thriving; on dry days, we conclude we are failing. But feelings are poor gauges of growth. Real maturity often deepens most in the hard, unfelt seasons, when we keep trusting and obeying God though we feel nothing. “So we do not lose heart. Though our outer self is wasting away, our inner self is being renewed day by day” (2 Corinthians 4:16) — the renewal is happening even when it is invisible to us.
A better measure of growth is fruit: not how we feel, but how we increasingly love, forgive, endure, and resemble Christ. “The fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control” (Galatians 5:22–23). Ask not “Do I feel more spiritual?” but “Am I more patient than I was, quicker to forgive, gentler, more honest, more given to God?” Growth measured this way is steadier and truer, and it keeps us pressing on through the dry stretches that feelings would tempt us to abandon.
Grow in the company of God’s people
No one grows well alone. God designed the Christian life to be lived in the fellowship of the church, where we are taught, encouraged, corrected, and carried. We are to grow up together, “speaking the truth in love” until the whole body matures, “when each part is working properly” (Ephesians 4:15–16). The believers who grow most are usually those planted deep in a healthy church, not those trying to go it alone.
So commit yourself to a fellowship of believers, and let them into your life. Serve, be served, learn from those further along, and help those behind you. Iron sharpens iron, and much of God’s shaping of us comes through other people. The isolated Christian is a vulnerable and slow-growing one; the connected Christian grows in the soil God designed for growth.
Keep going — and trust God with the harvest
Finally, growth requires perseverance. There will be dry seasons, failures, and times when you seem to go backwards. Do not give up. Keep feeding on the word, keep praying, keep near to Christ, keep turning from sin, keep gathering with God’s people — and trust him to do the deep work that only he can do. Growth is often clearest in hindsight; looking back over years, you will see how far he has brought you.
Remember that the goal is not merely self-improvement but Christlikeness — to become, more and more, like the One who loves you. And remember whose work this finally is: you plant and water by these ordinary means, but God gives the growth. So use the means faithfully, be patient with the process, and lift your eyes to the One who has promised to complete what he began. The seed he planted in you will grow, in his time, into a tree that bears much fruit.