Life is a Journey - Lesson 3

When You Stumble

When you stumble in your new walk with God. Even though God’s power is at work within you, helping you to become more like Jesus, you will stumble. This is not to remove the joy of your new faith; it is to prepare you for the joy of spiritual growth that lies ahead. God knows this and is not surprised, and it does not affect his commitment toward you. What is “sin”? Is temptation sin? How will you tell God that you sinned and are sorry? Does he forgive? Can you be cleansed?

Bill Mounce
Life is a Journey
Lesson 3
Watching Now
When You Stumble

I. Living a changed life

II. Defining three terms

A. Relativism

B. Sin

C. Temptation

1. Temptation is not sin

2. You don't have to give in to temptation

3. God is on your side

III. Practical Suggestions

A. Confess

1. Get it over with

2. Confess your sin to one another

B. Receive his forgiveness

C. Be Cleansed

IV. Psalm 32

  • Looking back over your conversion experience. It’s always a good idea to look back over your conversion experience. What do you think happened when you became a follower of Jesus Christ? Are you unclear about anything? Could you possibly have misunderstood anything? Did anything happen of which you might not be aware?

  • The change that is happening in your life. “Conversion” means you converted from one thing to another. In your case, you changed from not being a disciple of Jesus to being one. It also means that God is now at work in your life, starting to make you be more like Jesus. Does this surprise you? What actually happened when you became a Christian? What does this new life as a follower of Jesus look like? Does my life change automatically?

  • When you stumble in your new walk with God. Even though God’s power is at work within you, helping you to become more like Jesus, you will stumble. This is not to remove the joy of your new faith; it is to prepare you for the joy of spiritual growth that lies ahead. God knows this and is not surprised, and it does not affect his commitment toward you. What is “sin”? Is temptation sin? How will you tell God that you sinned and are sorry? Does he forgive? Can you be cleansed?

  • A crucial element of any relationship is communication, both listening and speaking. God has spoken to us two basic ways, through creation and through his Word, the Bible. What do the terms “inspiration,” “authority,” and “canonicity” mean? Can we trust the Bible? How do I listen to God as I read his word? Am I supposed to do anything beyond reading it?

  • Healthy communication requires not only listening but also talking. Prayer is simply talking with God, about anything and everything. He is our new Father, and he wants to hear from you. How do you pray? What do you pray about? What if I have trouble listening to him speaking?

  • When you became a Christian, you understood certain things about God. But did you know that he knows everything? That he is present everywhere? That he is all-powerful? How then should we respond to a fuller knowledge of God? What is worship? How should we respond to what we know of God?
  • Jesus is the best known person in history. He has had more affect on world history than any other leader or philosophy or political movement. Many people know the name, but who is he? What did he say about himself? What did his followers say about him? And what is the significance and relevance of these questions and our answers?

  • Jesus did many things while on earth, but the most significant of all was dying on the cross. But what exactly happened? What was accomplished? What does the Bible mean when it talks about Jesus being the “lamb of God”? Is there anything that can help me understand the significance of his death. Do I need to be reminded about it on a regular basis?

  • Christians are monotheists; we believe in one God. But we are also Trinitarians; we believe in three “persons” of the Trinity — God the Father, God the Son, and God the Holy Spirit. Who is this third member of the Trinity? What actually does he do? What is his on-going role in my life? What does it mean to be led and empowered by the Holy Spirit? Do I have to do anything, or does he do all the work? Where would we be if it were not for the work of the Holy Spirit?

  • When you became a Christian, you started to walk with God. It is a day-by-day process in which sin has less hold on your life and you more and more look like Jesus. But some days are more difficult than others, especially when difficult things happen. Why do these “bad things” happen? Can I keep back parts of myself from God if doing so helps me avoid pain? Are there any consequences to allowing sin in some parts of my life? What does it mean that Jesus is both “Savior” and “Lord”?

  • While we become God’s children one disciple at a time, as children we are members of a new family with a new father, new brothers and sisters, and a new home. How do I relate to these people? Do I need to spend time with them? Is this an easy or difficult task? How does the early church help us understand these issues? How does my love for God show itself to others?

  • Disciples are to make more disciples. This is one of the most joyous experiences of your life as you share how God made you alive, and he will do the same for your friends, neighbors, and others. This isn’t a frightening process; it is in fact natural for people who have been changed and are living changed lives. How will people respond to you? What is a “personal testimony”? How do I tell people they too can be a disciple of Jesus? What if they don’t like me?

  • We are thankful that you have attended Life is a Journey. We trust that it has encouraged you to continue in your spiritual journey. Your next step is to take the next class in the Foundations Program, Bible Survey, A Big Screen Perspective. It will give you a broad stroke understanding of the basic structure of the Bible. Just be sure not to study alone. Get a group together that wants to learn the same information.

When we became a follower of Jesus, we started on the spiritual journey of our life. We went through the gate of conversion and started up the path of discipleship. As we travel the path, we will start to change, not because we have to but because we want to. We won't always make the right decisions; we will stumble, but Jesus and your fellow travelers are there to help you get back on your feet. The further you travel, the more you will learn about God, how to listen to him, and how to talk with him. You will learn more deeply who God is, who Jesus is and what he did, and who the Holy Spirit is and what he does for us. And you will learn about walking with other believers (the “church”) and inviting others to join you (“evangelism”). Because life is a journey, God does not expect you to get everything right the first time; we are all on a learning curve and God is patient with us. However, we were never intended to walk alone. We were saved into a new family, with new brothers and sisters, and a new Father.. In this study, you are encouraged to find an older traveler and invite them to walk with you.

The "Notebook" to which Dr. Mounce refers in the introduction is the Student Guide that you can download or order in paperback form by clicking on the link on the course page on the website (not the app).

Be sure to download the chart (to the right) that aligns questions from the New City Catechism with Life is a Journey. This way, when you have completed each lesson, you can know which catechism questions you will understand. 

While the course was originally designed for new believers, we have found that it functions well as a foundation class for all believers.

Recommended Books

Life is a Journey - Student Guide

Life is a Journey - Student Guide

When we became a follower of Jesus, we started on the spiritual journey of our life. We went through the gate of conversion and started up the path of discipleship. As we...

Life is a Journey - Student Guide

Dr. Bill Mounce
Life is a Journey
When You Stumble
Lesson Transcript



When we became Christians, we were changed. We died with Christ to that old life and were raised to a new life, a new life of discipleship, a life in which we submit our wills to the perfect and holy will of God. Our life started to show the fruits of the Spirit and we began to have God’s love where there was none before. We started to have God’s joy and his peace, patience, kindness, goodness, faithfulness, gentleness, and self-control. In other words, our lives changed.

Yet this new life of fruitful discipleship isn’t automatic, is it? God is at work in us. He is giving us his desires, and then he is giving us the ability to make those desires a reality. However, God will not force his desires upon us. He will not make us love. He will not make us be joyous. He will not make us feel peaceful. Rather, we must take the next step and pursue God’s love, his joy, his peace, and his patience. We must take the step and empowered by God’s Spirit pursue the things of God. God gives us the desire, he gives us the ability, but we must do something about it. We must take the next step.

Amidst all the joy of our new spiritual lives, I do have some bad news. The bad news is that sometimes we will fail to take that next step. We will act as if we were not changed in our conversion. Instead of love, there will be anger, which might develop into hatred. Instead of joy, there might develop a critical and bitter spirit. Instead of peace, there can be anxiety and turmoil.

It took me a long time to decide when I was going to raise this topic because I know that you are excited. There’s so much joy when a person first becomes a child of God. We realize that we’re not going to spend eternity in hell. We’re going to go to heaven. We realize that we have a new Father and a new family.

Yet, you need to know that challenges are coming. In fact, those challenges may already have started. So the question is, what are you going to do when you don’t take that next step of obedience? What are you going to do when you stumble and fall in the Christian walk? What are you going to do when you sin?


Before I give an answer to these questions, I need to define three terms that I’m going to be using throughout the rest of this talk: relativism; sin; and temptation.

A. Relativism

“Relativism” is not a biblical word, but it does describe the world in which most of us live and it describes the culture out of which most of us came when we became a child of God.

Relativism is the denial of the existence of absolute truth. It’s the philosophy that says there’s nothing necessarily right and nothing necessarily wrong. It says that truth is relative. Relativism says, “What is true for me may not be true for you. What is true for me this morning may not be true for me this afternoon.” The world has a word for this. It’s called “postmodern thinking” or “postmodernity.” The Bible has a different word for it, it’s called “rebellion against God.”

You and I, as children of God, believe that our Father is the creator. As the creator, we believe he has the right and the wisdom to determine truth. There is absolute truth and it’s what God our creator decrees to be truth. In fact, we believe that God himself is truth. God is our all–wise creator who decides what is true and what is not true.

We also believe that God is good all the time. Therefore, this all-wise, all-good creator wants the best for his creation. This all-wise, all-good creator gives us rules and guidelines in the Bible. In the Bible, he has told us what is true and false, what is right and wrong. At times, we’re going to disagree with his judgment, but that just means we’re wrong. Truth is what God has determined. Therefore, what the Bible says is what is best for you and for me.

In Psalm 16:11, the Psalmist, the writer, understands this and he says, speaking to God, “You make known to me the path of life. You will fill me with joy in your presence with eternal pleasures at your right hand.” Notice that the Psalmist doesn’t write, “God, you gave me a bunch of rules that I have to follow and in your presence I’m miserable because I have this new list of things to do and things not to do.” That’s the way some people look at Christians and also the way some Christians look at themselves. But the Psalmist understands that God has made known to us truth, the path of life. Only on that path is their real joy. Only in his presence do we find true pleasure.

We’re not relativists. We believe there is absolute, moral, spiritual truth. We believe truth is determined not by the world, but by our creator who is all-wise and all-good, and he wants the best for his creation. That’s our starting point and it’s diametrically opposed to everything we’ve been taught in this world.

B. Sin

The second word I need to define is the word “sin.” Sin is a word that most of us are familiar with, but let me make sure we have a proper definition of it. Sin at its most basic level is missing the mark. Imagine an archer drawing his bow back, sighting down the arrow. He’s aiming for the middle of the target, which is his mark. He lets the arrow fly and the arrow misses the mark.

Now that — at its most basic, fundamental level — is what sin is. Sin is missing the mark. Who establishes the mark? Who says, “This is the middle of the bullseye”? Who says, “This is where our lives are to aim”? God does. Our all-wise, all-good creator says, “That’s the bullseye.” We draw back the bow of our lives and shoot the arrow. And sin is when the arrow doesn’t hit the bullseye. It goes to the side.

For example, what is the bullseye for our tongue? God tells us in Ephesians 4, verse 29. “Do not let any unwholesome talk come out of your mouths, but only what is helpful for building others up according to their needs, that it may benefit those who listen.” In chapter 5 verse, 4, he says, “Nor should there be obscenity, foolish talk or coarse joking which are out of place, but rather thanksgiving.”

God has shown us where the bullseye is. He’s saying, “As far as your tongue is concerned, it is to be so full of grace and thanksgiving, it is to be so busy building up one another that there is no room or time to tear the other person down.” And we know the middle of the bullseye, but what do we do? Where do we shoot the arrows of our lives?

Now, despite the fact that we do believe that God is all-wise and all-good, there are times when we say things like, “No, God, I know better than you. Your ways are not always best. You’re not always wise. This is just not the time to build up, to edify, or to extend grace to the other person.” So we gossip, we slander, we hurt the other person. We destroy their reputation. We sow seeds of distrust and discontent.

God has shown us the mark, he has given us the bullseye, and sin is when we miss the mark, when we fall short. Sin is when we don’t do what God has asked us to do. Or to use another image, sin is when we stumble in our walk.

C. Temptation

The third word that I need to define is the word “temptation.” Temptation simply means to entice to sin. Somebody hurts us, and thoughts go through our head to respond in anger. That’s temptation. Or a woman walks by, or a man, and something inside of us says to look her or him up and down, to lust. That’s temptation. That’s the enticement to sin. Let me share with you three things from the Bible about temptation.

1. Temptation is not sin

Number one, temptation is not sin. Evil thoughts fly through our heads whether we like it or not. Sometimes we put ourselves in situations in which there are more evil thoughts and that’s our fault, but often evil thoughts come and we have done nothing to encourage them. That’s temptation, not sin.

Temptation becomes sin when we yield to it. Temptation becomes sin when we yield, and we do respond in anger or gossip and slander. Temptation becomes sin when we let our eyes dwell on that woman and undress her in our minds. Temptation becomes sin when we fall into a fantasy relationship with some man. Temptation becomes sin when we yield to it. But temptation itself is not sin.

2. You don’t have to give in to temptation

Two, you don’t have to give into temptation. I’m showing my age when I mention a famous comedian from years ago, but Flip Wilson got a lot of laughs with one line. Do you remember that line? “The devil made me do it.” Flip Wilson got a lot of laughs out of that line, but his theology was absolutely wrong. The devil can’t make anybody do anything. Sin can’t make us do something wrong.

Understand that on the cross and in our conversion the mastery of sin was completely broken in our lives. We no longer have to sin. Sin’s still present, but its mastery, its domination, its control was broken, and we don’t have to give in to temptation.

There are promises all the way through the Bible along these lines. Jesus told the disciples in John 16, verse 33, “In this world, you will have trouble, but take heart, I have overcome the world.” Jesus conquered the world. He destroyed the absolute power of sin. 1 John 4, verse 4, speaking of God says, “He who is in you,” Jesus, “is greater than he who is in the world,” Satan.

The God who is in us through the Holy Spirit is greater than Satan and anything else this world has. What is inside of you has conquered what is outside of you. Satan simply can’t make you sin. We sin because we want to, we sin because we like to yield to temptation, but never are we made to sin.

The most important promise along these lines was in Paul’s Letter to the Church in Corinth. In 1 Corinthians 10, verse 13, Paul tells them, “No temptation has overtaken you except what is common to mankind. Here’s what’s going to happen if you’re like everyone else. The temptation is going to come and you’re going to feel completely alone. You’re going to feel as if no one has ever been tempted like this before. You’re going to feel as if no one has endured a temptation that was this difficult to resist. If you’re thinking this way, that’s the voice of Satan and the voice of sin. The promise of God is that no temptation has overtaken you that is not common. We are not alone. No matter how difficult it is, we’re not alone. If we are being tempted a certain way, other people are being tempted in the same way. We are not alone.

Then Paul continues, “God is faithful. He will not let you be tempted beyond what you can bear.” That is your ability to resist temptation. “But when you are tempted, he will also provide a way out so that you can endure it.” Notice that Paul doesn’t say you have to endure temptation by some personal inner strength. Rather, he reflects on the character of God. God is faithful. God has made certain promises to us, and our sovereign God is so in control of the circumstances of our lives that he has promised he will never allow a temptation to come into our lives that we have to yield to. We will never have a temptation that we cannot resist. In fact, our all-wise, all-good, all-loving sovereign God says that in the midst of the temptation, there’ll be a way for us to move out of it and not yield. God is not going to keep us away from temptation, but he is going to be with us in the midst of temptation.

And as we learn not to yield to temptation by the power of his Spirit, we grow in our Christian walk. We never have to sin. We sin because we want to and we like it. I laughed a lot at Flip Wilson, but he wasn’t right.

3. God is on your side

Thirdly, please understand that God is on your side. This joy and excitement you are feeling as a new Christian is real and there is victory in your walk as a child of God. The reason there is victory is because God is for you, not against you. God wants you to be victorious in resisting sin, to not yield to temptation.

I had a basketball coach once that needed to listen to this talk because he wanted me to fail. I never had a basketball coach like that before. There was an odd, dysfunctional relationship between free throws and the coach and me. Every time I got up to shoot a free throw, do you know what I heard? “Miss it”, or, “Bet you $5 you don’t make it.” That was my coach. He used to bet me all kinds of things if I missed the free throw. He wasn’t a very good coach and I missed a lot of free throws.

God’s not like my basketball coach. God doesn’t want you to fail. He wants you to succeed and not yield to temptation. In fact, he wants you not to yield to temptation so badly that he’s given you his Holy Spirit to live in you. That’s how badly he wants you to win this battle. He’s going to give you the desire to win the battle and then give you the ability to win the battle. Paul tells the Galatian Church, “Walk by the Spirit and you will not gratify the desires of the flesh” (Galatians 5:16). Listen to the Spirit. Listen to what he says. Listen to the direction that he gives you and then let his power be the power that helps you not yield to temptation.

God is on your side. He’s on my side. He’s not against us. He’s for us. Temptation is being enticed to sin; it’s not sin, and we don’t have to give into it. We have the power of God’s Spirit to help us not yield to temptation.


Allow me to give several practical suggestions when it comes to confession of sin.

A. Confess

1. Get it over with

One, get it over with. The tendency most people have is to mull over confession, spending time trying to decide if sin was really that bad or perhaps whether we can blame someone else. Just get it over with. Confess it early. Confess it often. Confess it fully. Just get it over with. As you and I hold onto our sin, what we’re doing is only hurting ourselves. We’re only falling further down the spiral of sin and we’re only damaging our relationship with God.

And the thing about confession is that when you and I confess, we’re not telling God something he doesn’t already know. He knows what we did, he knows what we thought, so just get it over with. Confess early. Confess often. Confess fully.

God sees what goes on at 1:00 in the morning. God hears what we whisper in private. He knows exactly what is going on in our lives and in our hearts. We’re not keeping anything from him. We’re not telling him anything he doesn’t already know.

2. Confess to One Another

A second piece of practical advice is to simply confess your sin to one another. This is not just a good idea; this is the Bible (James 5:16). Part of the lie of sin is that while we’re in the darkness of sin, sin’s telling us things like, “Don’t tell anyone. It’ll only get worse if you tell anyone. No, just keep this to yourself and work on it. If you tell someone else, you’re giving them power over you. You won’t want to do that. They’ll gossip about you. It’ll only get worse.” Have you heard that voice? That’s the voice of Satan. It’s the voice of sin. It’s the voice of the lie.

The fact of the matter is that the power is sin is snapped when we bring it to the light. We can probably all tell stories of times when sin was pulling us down, taking us further and further down that spiral of sin, and destruction. And then we start to get desperate wondering if we’re ever going to get out of this sin. And then, in obedience to Scripture, perhaps in desperation, we finally go to someone we trust and confess to them saying, “I need you to pray with me.” And what happens when we do that? It’s over. It’s amazing how the power of sin is almost always broken when we bring it to the light. Get it over with and confess your sin to one another. Sin’s always going to be here, sin never goes away until we die, but part of the Christian walk is learning to deal with it and we often need help doing so.

And, please, see that in the midst of our sin and our confession we are being changed as the Bible says, “from one degree of glory to another so that we look more and more like Jesus Christ.” Confession shapes us into being godly.


What happens when we confess? We receive his forgiveness.

1 John 1:9 says, “If we confess our sins, that because of his very character of being a faithful and a just God, he absolutely commits himself to forgive us our sins and purify us from all unrighteousness.”

Perhaps as you grow in your Christian walk, you may get caught in sin and ask, “How could God love a sinner like me?” The answer is that he loved you before conversion. Why would he not love you now? He loved us when we weren’t his children. Why would he stop loving us now that we are his son or daughter?

The thought may go through your mind, “But how could God really love someone who keeps on doing the same sins over and over again? How can he really forgive me?” The answer is, because he’s God and that’s what being God is about. I would struggle if you kept sinning against me. Even though I know the Bible says I have to keep forgiving you 70 times 7, it’s hard because I’m human. God isn’t human. He’s God. And he’s a faithful God. God is committed — no matter how much we sin or how many times we commit the same sin or no matter how bad it gets — that if we confess our sin and say, “God, you are right, I’m wrong,” he has committed himself always without exception to forgive us our sin and to cleanse us from all unrighteousness.


If you want to know what it’s like to be cleansed, go to Psalm 103. This is another Psalm about confession. If you’re caught in sin and you want to be forgiven and you can’t find the words, read Psalm 103. Read it as your own words. I’m going to start at verse eight.

“The Lord of compassionate and gracious, slow to anger, abounding in love. He will not always accuse nor will he harbor his anger forever; He does not treat us as our sins deserve or repay us according to our iniquities. For as high as the heavens are above the earth, so great is his love for those who fear him. As far as the East is from the West, so far has he removed our transgressions from us. As a father has compassion on his children, so the Lord has compassion on those who fear him; for he knows how we are formed, he remembers that we are dust.” That’s how God cleanses us.

God has determined what is true and false, what is right and wrong, what is good and bad. He is our all-good, all-wise creator who wants his best for his creation. With all of the joy and all of the victory that there is in the Christian walk, there’s also sin. There’s stumbling and falling, there’s yielding to temptation, and missing the mark.

Please confess your sin. Confess early. Confess often. Confess fully. Tell God, “You are absolutely right and I am absolutely wrong. No one else is to blame. I messed up. I’m sorry. Please forgive me.” God is committed to forgive and you will enjoy always the freedom that comes from being forgiven and being cleansed.


I want to leave you with one last Psalm. It’s Psalm 32. Starting at verse 3, the Psalmist describes what it was like not to confess sin.

“When I kept silent, my bones wasted away through my groaning all day long. For day and night your hand was heavy on me; my strength was sapped as in the heat of summer.” In another Psalm, he talks about his tongue sticking to the roof of his mouth.

However, what happens when he does confess his sin? Verse 5. “Then I acknowledged my sin to you and did not cover up my iniquity. I said, ‘I will confess my transgressions to the Lord.’ And you forgave the guilt of my sin.” Then back to verse 1, “Blessed is the one whose transgressions are forgiven, whose sins are covered. Blessed is the one whose sin the Lord does not count against them and in whose spirit there is no deceit.”


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