Becoming a Christian changes everything, but it does not mean you suddenly know how to live the Christian life.
A new believer may genuinely love Christ and want to obey Him while still having very little idea what Christian growth actually looks like. You may not know how to study the Bible, how to choose a church, what to do when temptation returns, or why following Jesus sometimes feels much harder than you expected.
That should not surprise us.
Peter told believers, “Like newborn infants, long for the pure spiritual milk, that by it you may grow up into salvation” (1 Peter 2:2). New Christians are exactly that: new. They need nourishment, instruction, encouragement, correction, and time to mature.
The danger comes when we mistake enthusiasm for maturity. A new Christian can be sincere and still make decisions that hinder spiritual growth. Some of those mistakes are especially common today because Christians have access to more sermons, podcasts, books, videos, and opinions than any previous generation.
So if you are a newer Christian, here are seven common mistakes to watch for and some biblical ways to avoid them.
1. Trying to Grow Without Becoming Part of a Local Church
One of the first mistakes a new Christian can make is treating Christianity as a private relationship between “me and Jesus.”
You can read the Bible by yourself. You can pray by yourself. You can listen to sermons online and follow Christian teachers from around the world. Those things can be useful, but none of them can replace belonging to a faithful local church.
The New Testament simply does not picture Christians living independently from other Christians.
After people believed the gospel in Acts, they did not scatter and practice Christianity on their own. “They devoted themselves to the apostles’ teaching and the fellowship, to the breaking of bread and the prayers” (Acts 2:42). Christianity immediately involved life with other believers.
Hebrews 10:24-25 similarly tells Christians to “consider how to stir up one another to love and good works, not neglecting to meet together.”
Notice how much of that requires other people. You cannot encourage “one another” by yourself. You cannot serve “one another” alone. You cannot practice patience, forgiveness, hospitality, submission, and sacrificial love in isolation.
The local church is also where God gives us pastors and elders who are responsible for teaching, shepherding, and watching over His people (Hebrews 13:17; 1 Peter 5:1-3).
So do not settle for being a consumer of Christian content. Find a faithful church where Scripture is taught accurately, Christ is honored, the gospel is clear, and believers take holiness seriously. Attend consistently. Pursue meaningful membership. Get to know people. Serve.
Christianity is personal, but God never intended it to be private.
2. Depending on Your Feelings Instead of God’s Word
The beginning of the Christian life can be emotionally powerful. You begin understanding truths you never saw before. Scripture seems alive. Prayer is exciting. Worship affects you differently. You may experience tremendous joy as you realize that your sins are forgiven and that you belong to Christ.
And then…Tuesday comes.
Eventually, you wake up and do not feel particularly spiritual. Reading the Bible feels difficult. Prayer seems dry. Worship does not produce the same emotions it once did.
A new Christian can easily interpret this as evidence that something is wrong. “Maybe God is far away.” “Maybe I am doing something wrong.” “Maybe I am not really saved.”
Our emotions are real, and we should not pretend they do not matter. But they are unreliable foundations for faith. Our confidence must rest on what God has said.
Jesus prayed to the Father, “Sanctify them in the truth; your word is truth” (John 17:17). Psalm 119:89 says, “Forever, O LORD, your word is firmly fixed in the heavens.”
Your feelings change; God’s Word does not.
This becomes especially important when dealing with assurance of salvation. If you belong to Christ, your confidence should not rest primarily on how close to God you feel today. It rests upon Christ and His promises. Jesus said of His sheep, “I give them eternal life, and they will never perish, and no one will snatch them out of my hand” (John 10:28).
Learn early in your Christian life to preach biblical truth to yourself instead of allowing your emotions to become your authority.
When your feelings contradict God’s Word, believe God.
3. Expecting Temptation and Sinful Habits to Disappear Immediately
Sometimes new Christians assume conversion will make temptations disappear.
Then an old temptation comes roaring back. You lose your temper. Lust returns. Pride shows up. You fall into an old sinful habit you thought you had left behind. Suddenly you wonder, “If I am really a Christian, why am I still struggling with this?”
The Bible teaches that conversion produces a real change. Paul writes in Romans 6:6 that our “old self was crucified with him” so that “we would no longer be enslaved to sin.” Sin is no longer the Christian’s master.
But freedom from sin’s dominion does not mean the Christian no longer fights against sin.
In fact, the fight itself becomes part of the Christian life.
Paul tells believers, “If by the Spirit you put to death the deeds of the body, you will live” (Romans 8:13). Colossians 3:5 similarly commands Christians to “put to death therefore what is earthly in you.”
Those commands would make little sense if Christians stopped experiencing temptation the moment they were converted.
This process of gradually growing in holiness is often called sanctification. God is conforming His people to the image of His Son (Romans 8:29). That transformation is real, but it normally happens throughout the Christian life.
So when you discover remaining sin, do not make peace with it, but do not conclude that the battle itself proves you are hopeless.
Confess your sin to God. Repent. Identify situations that lead you into temptation. Ask mature believers for help. Remove opportunities for habitual sin where possible. Fill your mind with Scripture and learn to depend upon the Holy Spirit.
You are not called to achieve instant perfection. You are called to follow Christ faithfully and make war against the sin that remains.
4. Trying to Grow Alone
You can attend church every Sunday and still try to live the Christian life alone. It happens more often than we might think. You arrive shortly before the service begins. You sing. You listen to the sermon. You exchange a few friendly words afterward. Then you leave.
Unfortunately, nobody really knows you.
Nobody knows what sins you are fighting. Nobody knows what questions or issues you have. Nobody knows where you are discouraged. And nobody is close enough to notice when you begin drifting.
New Christians especially need mature believers around them.
Paul told Timothy, “What you have heard from me in the presence of many witnesses entrust to faithful men, who will be able to teach others also” (2 Timothy 2:2). We see a pattern of Christians receiving truth and then intentionally helping others follow Christ.
Titus 2 gives us another picture. Older Christians are instructed to teach and model godliness for younger Christians. Spiritual maturity is meant to be passed along through relationships.
This is discipleship.
A mature Christian can help you understand a difficult passage of Scripture. He can point out something in your life you cannot see yourself. He can pray with you when you are discouraged. Perhaps most importantly, you get to watch what Christianity looks like in ordinary life.
Find mature Christians whose lives demonstrate the fruit of following Christ. Do things like ask questions, invite counsel, and, as tough as it may be sometimes, be willing to receive correction. If your church has small groups, Bible studies, or discipleship opportunities, get involved.
Do not merely attend a church, but become known there.
5. Consuming Too Much Christian Content Without Learning the Bible
New Christians today face a problem previous generations of believers could hardly have imagined: too much Christian content.
Within minutes, you can access thousands of sermons, podcasts, YouTube videos, social media accounts, stories and reels, books, devotionals, debates, and theological discussions.
Some of that material is good.
Much of it is terrible.
The problem is that a new Christian often does not yet know enough Scripture to tell the difference.
Acts 17:11 praises the Bereans because “they received the word with all eagerness, examining the Scriptures daily to see if these things were so.” Think about that. These people were checking what they heard against Scripture. That requires knowing Scripture.
Paul warned Timothy that “the time is coming when people will not endure sound teaching” but would gather teachers who suited their own desires (2 Timothy 4:3). False teaching is not a new problem. What has changed is how quickly false teaching can reach you.
A confident speaker with a camera and a large following is not necessarily a faithful Bible teacher.
We all need to make the Bible our primary spiritual diet.
Read entire books of Scripture rather than surviving on isolated verses. Learn what comes before and after a passage. Ask who wrote it, who received it, and what the author is teaching. Read the Old Testament as well as the New Testament. Over time, learn how the whole Bible fits together around God’s work of redemption through Christ.
Read entire books of Scripture rather than surviving on isolated verses.
Good books, sermons, podcasts, and teachers can help tremendously, but they should help you understand God’s Word rather than replace it.
You do not need to know what every Christian influencer thinks. You need to know what God has said.
6. Confusing Spiritual Growth With Knowing More Information
Once you begin studying Christianity seriously, theology can become exciting.
You start learning about justification, sanctification, election, the attributes of God, the doctrines of grace, church history, apologetics, and biblical interpretation. Perhaps you discover Reformed theology and suddenly realize there is an enormous theological world you never knew existed. Learn it.
Doctrine matters because truth about God matters. Christians should desire to understand Scripture more deeply. But knowledge can become dangerous when we confuse knowing more about God with actually walking with God.
Paul warned the Corinthians that “knowledge puffs up, but love builds up” (1 Corinthians 8:1). He was not condemning knowledge. He was warning about knowledge divorced from godliness and love.
James gives an even more direct warning: “Be doers of the word, and not hearers only, deceiving yourselves” (James 1:22).
You can win a theological argument and still speak harshly to your wife. You can explain the doctrine of providence and still complain whenever God’s providence interferes with your plans. You can understand biblical teaching about forgiveness while refusing to forgive someone who hurt you. You can defend the authority of Scripture while ignoring Scripture when it confronts your own sin.
I trust you’re getting what I’m saying. Biblical knowledge should lead somewhere, and that is growth inside of you.
When you study Scripture, begin asking practical questions. “What does this passage teach me about God?” “Is there something I need to believe?” “Is there a sin I need to confess?” “Is there a command I need to obey?” “Is there someone I need to forgive or encourage?” “How should this truth change the way I live this week?”
The goal of theology is not merely to produce people who know more theological vocabulary. God is forming people who know Him, love Him, worship Him, and obey Him.
Jesus said, “If you love me, you will keep my commandments” (John 14:15).
Keep doing things like learning, studying, and reading good theology. But make sure your knowledge is reaching your heart, your home, your relationships, and your daily decisions.
7. Becoming Discouraged When the Christian Life Gets Hard
One of the most damaging ideas a new Christian can absorb is that following Jesus will make life easier.
Sometimes circumstances do improve after conversion. A person may leave destructive habits behind. Relationships may begin healing. A new sense of purpose can transform the way someone approaches work, marriage, money, and family.
But Jesus never promised His followers an easy life. He actually prepared them for the opposite. “In the world you will have tribulation,” Jesus told His disciples. Then He added, “But take heart; I have overcome the world” (John 16:33).
The Christian life includes suffering.
You may pray faithfully and not receive the answer you wanted. Someone you love may become seriously ill. Friends may distance themselves because of your faith. Christians may disappoint you. You may struggle financially. Your church may go through a painful season. You may fight the same temptation for years.
None of these things necessarily mean God has abandoned you. Scripture teaches that God can actually use trials to mature His people. James writes, “Count it all joy, my brothers, when you meet trials of various kinds,” because the testing of faith produces steadfastness (James 1:2-3).
Peter says something similar. Trials test the genuineness of faith and ultimately result in “praise and glory and honor at the revelation of Jesus Christ” (1 Peter 1:6-7).
This does not mean suffering is pleasant. Christianity does not require us to pretend pain does not hurt. It means suffering is never outside the sovereign hand of God.
Learn early that Christ is worth following when life is joyful and when life is painful. Do not measure God’s faithfulness by the comfort of your present circumstances. Measure your circumstances in light of the character and promises of God.
Sometimes spiritual maturity looks less like feeling victorious and more like continuing to trust Christ when you cannot understand what He is doing.
Growth Takes Time, So Keep Following Christ
If you are a new Christian, you are going to make mistakes.
You will misunderstand passages of Scripture. You will occasionally believe bad advice. You may trust someone you should not have trusted. You will discover sins in yourself you did not know were there. There will probably be seasons when your spiritual growth seems painfully slow. Do not let that discourage you.
God does not save His people and then leave them to figure out Christianity by themselves. Paul told the Philippians that “he who began a good work in you will bring it to completion at the day of Jesus Christ” (Philippians 1:6).
So begin building the habits that help Christians mature.
Commit yourself to a faithful local church. Build your life upon God’s Word rather than your emotions. Fight sin without expecting instant perfection. Develop relationships with mature Christians. Make Scripture more important than Christian media. Pursue knowledge that produces obedience. And when suffering comes, keep trusting the One who called you.
Most importantly, keep your eyes on Christ.
Christianity is not ultimately a program for self-improvement. You were spiritually dead and Christ gave you life. You were guilty and He provided righteousness. You were separated from God and Christ reconciled you through His blood. The same Savior who brought you into the Christian life is the One you need every day as you grow.
You do not need to become a mature Christian overnight. You need to take the next faithful step.
Read the Word. Pray. Repent when you sin. Worship with God’s people. Receive correction. Serve others. Learn sound doctrine. Obey what God teaches you. Then wake up tomorrow and continue following Christ.
Years of ordinary faithfulness, by the grace of God, produce something that cannot be manufactured by enthusiasm alone: Christian maturity.
