The Shape of Holiness - Union with Christ
Many Christians know they are supposed to grow in holiness, but many are less clear on how that growth actually happens.
When we think about holiness, we often think first about behavior. We think about reading the Bible more consistently, praying more faithfully, resisting temptation, or becoming more obedient. Those things certainly matter. Christians are called to pursue holiness, fight sin, and walk in obedience to the Lord.
But if we are not careful, we can begin to think of holiness as something we produce by sheer effort. We may assume the Christian life works like this: try harder, do better, sin less, and become more holy.
Yet Scripture teaches something far deeper and far better.
Holiness does not begin with self-effort. Holiness begins with our union with Jesus Christ.
Throughout the New Testament, believers are repeatedly described as being “in Christ.” This small phrase carries enormous significance. To be a Christian is not merely to agree with Jesus, admire Jesus, or follow Jesus from a distance. To be a Christian is to be united to Jesus by faith. His death becomes our death. His resurrection becomes our resurrection. His life becomes our life.
This means holiness is not the fruit of self-improvement. Holiness is the fruit of being united to Christ.
Christ Is the True Vine
In John 15, Jesus says, “I am the true vine, and my Father is the vinedresser” (John 15:1).
This image would have been familiar to His disciples. Throughout the Old Testament, Israel was often described as God’s vine. But Israel repeatedly failed to produce the fruit God desired. Instead of righteousness, there was rebellion. Instead of faithfulness, there was idolatry.
Then Jesus makes a remarkable declaration: “I am the true vine.” Where Israel failed, Christ succeeds. He is the faithful Son. He is the obedient Servant. He is the true source of spiritual life.
Jesus continues the image by describing His people as branches. A branch has no life in itself. It cannot sustain itself. It cannot produce fruit by itself. Everything the branch needs comes from its connection to the vine.
That is a picture of the Christian life. We are not spiritually self-sufficient. We do not possess life in ourselves. We cannot produce lasting spiritual fruit by our own strength. We need Christ. Apart from Him, we have no spiritual life, no spiritual power, and no spiritual fruitfulness.
Jesus also says the Father is the vinedresser. This means the Father lovingly tends, cultivates, and cares for His people. Like a gardener pruning a healthy vine so that it bears more fruit, God often works in our lives through discipline, correction, trials, and sanctification.
Pruning can be painful. God may remove things we would rather keep. He may expose sins we would rather ignore. He may lead us through seasons of difficulty that reveal our weakness and deepen our dependence on Him. But the Father’s pruning is never careless. It is the loving work of a faithful Gardener. His goal is not merely our comfort, but our fruitfulness.
Abide in Christ
Jesus then gives a command that is repeated throughout John 15: “Abide in me, and I in you” (John 15:4). To abide means to remain, continue, dwell, or stay connected. Jesus is describing an ongoing relationship with Himself.
Notice what Jesus does not say. He does not say, “Perform for me.” He says, “Abide in me.”
Many Christians unintentionally view their relationship with God like a performance review. If they have a good week, they assume God is pleased. If they have a bad week, they assume God is distant or disappointed. But Jesus brings us back to something deeper than performance. He brings us back to relationship.
Abiding in Christ means remaining near to Him through His Word, prayer, worship, obedience, and fellowship with His people. It means living with a conscious awareness that apart from Him, we can do nothing of eternal value.
It also means remembering that this relationship is mutual. Jesus says, “Abide in me, and I in you.” The believer abides in Christ, but Christ also abides in the believer. Through the Holy Spirit, Christ is present with His people.
This is one of the great comforts of the Christian life. We are not left to pursue holiness alone. Christ Himself dwells with us and in us. He strengthens us. He convicts us. He sustains us. He bears fruit in us.
One of the great mistakes we make is trying to live the Christian life apart from Christ. We try to fight temptation, overcome sin, and pursue holiness through sheer willpower. But Jesus reminds us that the Christian life was never designed to function that way.
The goal is not self-reliance.
The goal is dependence.
Abiding Produces Fruit
Jesus says, “As the branch cannot bear fruit by itself, unless it abides in the vine, neither can you, unless you abide in me” (John 15:4). This dismantles the self-help version of Christianity.
A branch does not force itself to produce fruit. It does not strain, strive, or manufacture life. Fruit is the natural result of life flowing from the vine into the branch. In the same way, spiritual fruit is the result of Christ’s life working in us.
Jesus continues, “Whoever abides in me and I in him, he it is that bears much fruit” (John 15:5).
Fruit-bearing is not optional in the Christian life. Genuine union with Christ inevitably produces transformation. The amount of fruit may differ from believer to believer, and the pace of growth may vary, but fruit itself is unavoidable.
What kind of fruit does Jesus produce in His people?
Certainly this includes Christlike character: love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control. It also includes obedience, perseverance, spiritual maturity, and participation in the mission of making disciples.
Healthy Christians help others follow Jesus. Just as fruit contains seeds that produce more fruit, believers who abide in Christ become instruments through whom others are encouraged, strengthened, and discipled.
Then Jesus gives one of the most humbling statements in all of Scripture: “Apart from me you can do nothing” (John 15:5). He does not say, “Apart from me you can do a little.” He says, “Apart from me you can do nothing.”
Of course, people can accomplish many earthly things apart from Christ. They can build careers, make money, gain influence, and achieve success. But they cannot produce true spiritual fruit apart from Him. Anything of eternal value flows from union with Jesus.
Abiding in Christ Means Abiding in His Love
Jesus then moves from fruitfulness to love: “As the Father has loved me, so have I loved you. Abide in my love” (John 15:9).
This is astonishing.
Think about the love that exists between the Father and the Son. It is eternal, perfect, unchanging, and infinite. Jesus says that His love for His people is patterned after that love.
Many believers struggle to believe this. We often measure God’s love by our performance. We compare ourselves to others. We focus on our failures. We assume that Christ’s love rises and falls depending on how well we are doing.
But Jesus anchors our confidence not in our performance, but in His love. He says, “Abide in my love.”
How do we do that? Jesus connects love and obedience: “If you keep my commandments, you will abide in my love” (John 15:10).
Obedience is not how we earn Christ’s love. Obedience is how we enjoy Christ’s love. The more closely we walk with Him, the more deeply we experience the joy of fellowship with Him.
This is why holiness is not the enemy of joy. Holiness is the pathway to joy.
Jesus says, “These things I have spoken to you, that my joy may be in you, and that your joy may be full” (John 15:11).
The world promises happiness through sin, but Jesus promises joy through abiding.
United with Christ in His Death
Romans 6 approaches this same truth from another angle. After explaining salvation by grace, Paul asks, “Are we to continue in sin that grace may abound?” (Romans 6:1). In other words, if God forgives sinners by grace, should we just keep sinning? Paul responds strongly: “By no means!” Why? Because something fundamental has changed. “How can we who died to sin still live in it?” (Romans 6:2).
Notice that Paul does not begin with behavior. He begins with identity. Through union with Christ, believers have died to sin.
Paul then uses baptism as a picture of our identification with Jesus in His death, burial, and resurrection. Going under the water represents death and burial. Coming out of the water represents resurrection and new life.
Baptism does not save us, but it beautifully pictures what has happened spiritually. When Christ died, believers died with Him. Paul says, “Our old self was crucified with him” (Romans 6:6).
The old self refers to who we were in Adam: our sinful nature, rebellion, and slavery to sin. The law could expose sin, but it could not transform the heart. God’s solution was not mere moral improvement. His solution was crucifixion.
The old self died with Christ.
United with Christ in His Resurrection
But the good news does not stop with death. Paul says that just as Christ was raised from the dead, “we too might walk in newness of life” (Romans 6:4). Union with Christ means we share not only in His death, but also in His resurrection.
Many Christians live as though salvation only means forgiveness. Forgiveness is glorious, but salvation is even more than that. God not only forgives sinners; He gives them new life.
This does not mean Christians never struggle with sin. We still battle the flesh. Old habits remain. Temptation remains. The world continues to pull against us. But our relationship to sin has changed.
Before conversion, sin was our master. Now Christ is our Master.
Before conversion, we were spiritually dead. Now we are spiritually alive.
Before conversion, we could not please God. Now, by grace, we have both the desire and the power to pursue Him.
This is why Christian growth is possible. The same power that raised Jesus from the dead is now at work in His people.
Living Out Our Union with Christ
Paul’s doctrine of union with Christ leads to practical application. “So you also must consider yourselves dead to sin and alive to God in Christ Jesus” (Romans 6:11). To “consider” means to reckon, count, or regard something as true. Paul is calling believers to believe what God says about them.
You are not who you once were.
You are no longer a slave to sin.
You belong to Christ.
Therefore, do not let sin reign in your life.
Paul continues, “Do not present your members to sin as instruments for unrighteousness, but present yourselves to God” (Romans 6:13).
Every part of our lives matters.
Our eyes matter.
Our ears matter.
Our minds matter.
Our hands matter.
Our words matter.
Our desires matter.
Every part of who we are can either be presented to sin or presented to God. Because we have been united to Christ, we now have the freedom to live differently.
We no longer fight for acceptance. We fight from acceptance.
We no longer pursue holiness to earn God’s favor. We pursue holiness because we already belong to Him.
This is the freedom of grace.
The Shape of Holiness Is Christ Himself
The Christian life is not about becoming a slightly better version of yourself. It is about being united to Jesus Christ.
He is the Vine. We are the branches. Apart from Him, we can do nothing. But through Him, we bear fruit.
Because we are united with Christ, we have died to sin. Because we are united with Christ, we have been raised to new life. Because we are united with Christ, we can pursue holiness with confidence.
The shape of holiness is not self-improvement.
The shape of holiness is Christ Himself.
And the more closely we abide in Him, the more our lives will begin to reflect Him.
When we think about holiness, we often think first about behavior. We think about reading the Bible more consistently, praying more faithfully, resisting temptation, or becoming more obedient. Those things certainly matter. Christians are called to pursue holiness, fight sin, and walk in obedience to the Lord.
But if we are not careful, we can begin to think of holiness as something we produce by sheer effort. We may assume the Christian life works like this: try harder, do better, sin less, and become more holy.
Yet Scripture teaches something far deeper and far better.
Holiness does not begin with self-effort. Holiness begins with our union with Jesus Christ.
Throughout the New Testament, believers are repeatedly described as being “in Christ.” This small phrase carries enormous significance. To be a Christian is not merely to agree with Jesus, admire Jesus, or follow Jesus from a distance. To be a Christian is to be united to Jesus by faith. His death becomes our death. His resurrection becomes our resurrection. His life becomes our life.
This means holiness is not the fruit of self-improvement. Holiness is the fruit of being united to Christ.
Christ Is the True Vine
In John 15, Jesus says, “I am the true vine, and my Father is the vinedresser” (John 15:1).
This image would have been familiar to His disciples. Throughout the Old Testament, Israel was often described as God’s vine. But Israel repeatedly failed to produce the fruit God desired. Instead of righteousness, there was rebellion. Instead of faithfulness, there was idolatry.
Then Jesus makes a remarkable declaration: “I am the true vine.” Where Israel failed, Christ succeeds. He is the faithful Son. He is the obedient Servant. He is the true source of spiritual life.
Jesus continues the image by describing His people as branches. A branch has no life in itself. It cannot sustain itself. It cannot produce fruit by itself. Everything the branch needs comes from its connection to the vine.
That is a picture of the Christian life. We are not spiritually self-sufficient. We do not possess life in ourselves. We cannot produce lasting spiritual fruit by our own strength. We need Christ. Apart from Him, we have no spiritual life, no spiritual power, and no spiritual fruitfulness.
Jesus also says the Father is the vinedresser. This means the Father lovingly tends, cultivates, and cares for His people. Like a gardener pruning a healthy vine so that it bears more fruit, God often works in our lives through discipline, correction, trials, and sanctification.
Pruning can be painful. God may remove things we would rather keep. He may expose sins we would rather ignore. He may lead us through seasons of difficulty that reveal our weakness and deepen our dependence on Him. But the Father’s pruning is never careless. It is the loving work of a faithful Gardener. His goal is not merely our comfort, but our fruitfulness.
Abide in Christ
Jesus then gives a command that is repeated throughout John 15: “Abide in me, and I in you” (John 15:4). To abide means to remain, continue, dwell, or stay connected. Jesus is describing an ongoing relationship with Himself.
Notice what Jesus does not say. He does not say, “Perform for me.” He says, “Abide in me.”
Many Christians unintentionally view their relationship with God like a performance review. If they have a good week, they assume God is pleased. If they have a bad week, they assume God is distant or disappointed. But Jesus brings us back to something deeper than performance. He brings us back to relationship.
Abiding in Christ means remaining near to Him through His Word, prayer, worship, obedience, and fellowship with His people. It means living with a conscious awareness that apart from Him, we can do nothing of eternal value.
It also means remembering that this relationship is mutual. Jesus says, “Abide in me, and I in you.” The believer abides in Christ, but Christ also abides in the believer. Through the Holy Spirit, Christ is present with His people.
This is one of the great comforts of the Christian life. We are not left to pursue holiness alone. Christ Himself dwells with us and in us. He strengthens us. He convicts us. He sustains us. He bears fruit in us.
One of the great mistakes we make is trying to live the Christian life apart from Christ. We try to fight temptation, overcome sin, and pursue holiness through sheer willpower. But Jesus reminds us that the Christian life was never designed to function that way.
The goal is not self-reliance.
The goal is dependence.
Abiding Produces Fruit
Jesus says, “As the branch cannot bear fruit by itself, unless it abides in the vine, neither can you, unless you abide in me” (John 15:4). This dismantles the self-help version of Christianity.
A branch does not force itself to produce fruit. It does not strain, strive, or manufacture life. Fruit is the natural result of life flowing from the vine into the branch. In the same way, spiritual fruit is the result of Christ’s life working in us.
Jesus continues, “Whoever abides in me and I in him, he it is that bears much fruit” (John 15:5).
Fruit-bearing is not optional in the Christian life. Genuine union with Christ inevitably produces transformation. The amount of fruit may differ from believer to believer, and the pace of growth may vary, but fruit itself is unavoidable.
What kind of fruit does Jesus produce in His people?
Certainly this includes Christlike character: love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control. It also includes obedience, perseverance, spiritual maturity, and participation in the mission of making disciples.
Healthy Christians help others follow Jesus. Just as fruit contains seeds that produce more fruit, believers who abide in Christ become instruments through whom others are encouraged, strengthened, and discipled.
Then Jesus gives one of the most humbling statements in all of Scripture: “Apart from me you can do nothing” (John 15:5). He does not say, “Apart from me you can do a little.” He says, “Apart from me you can do nothing.”
Of course, people can accomplish many earthly things apart from Christ. They can build careers, make money, gain influence, and achieve success. But they cannot produce true spiritual fruit apart from Him. Anything of eternal value flows from union with Jesus.
Abiding in Christ Means Abiding in His Love
Jesus then moves from fruitfulness to love: “As the Father has loved me, so have I loved you. Abide in my love” (John 15:9).
This is astonishing.
Think about the love that exists between the Father and the Son. It is eternal, perfect, unchanging, and infinite. Jesus says that His love for His people is patterned after that love.
Many believers struggle to believe this. We often measure God’s love by our performance. We compare ourselves to others. We focus on our failures. We assume that Christ’s love rises and falls depending on how well we are doing.
But Jesus anchors our confidence not in our performance, but in His love. He says, “Abide in my love.”
How do we do that? Jesus connects love and obedience: “If you keep my commandments, you will abide in my love” (John 15:10).
Obedience is not how we earn Christ’s love. Obedience is how we enjoy Christ’s love. The more closely we walk with Him, the more deeply we experience the joy of fellowship with Him.
This is why holiness is not the enemy of joy. Holiness is the pathway to joy.
Jesus says, “These things I have spoken to you, that my joy may be in you, and that your joy may be full” (John 15:11).
The world promises happiness through sin, but Jesus promises joy through abiding.
United with Christ in His Death
Romans 6 approaches this same truth from another angle. After explaining salvation by grace, Paul asks, “Are we to continue in sin that grace may abound?” (Romans 6:1). In other words, if God forgives sinners by grace, should we just keep sinning? Paul responds strongly: “By no means!” Why? Because something fundamental has changed. “How can we who died to sin still live in it?” (Romans 6:2).
Notice that Paul does not begin with behavior. He begins with identity. Through union with Christ, believers have died to sin.
Paul then uses baptism as a picture of our identification with Jesus in His death, burial, and resurrection. Going under the water represents death and burial. Coming out of the water represents resurrection and new life.
Baptism does not save us, but it beautifully pictures what has happened spiritually. When Christ died, believers died with Him. Paul says, “Our old self was crucified with him” (Romans 6:6).
The old self refers to who we were in Adam: our sinful nature, rebellion, and slavery to sin. The law could expose sin, but it could not transform the heart. God’s solution was not mere moral improvement. His solution was crucifixion.
The old self died with Christ.
United with Christ in His Resurrection
But the good news does not stop with death. Paul says that just as Christ was raised from the dead, “we too might walk in newness of life” (Romans 6:4). Union with Christ means we share not only in His death, but also in His resurrection.
Many Christians live as though salvation only means forgiveness. Forgiveness is glorious, but salvation is even more than that. God not only forgives sinners; He gives them new life.
This does not mean Christians never struggle with sin. We still battle the flesh. Old habits remain. Temptation remains. The world continues to pull against us. But our relationship to sin has changed.
Before conversion, sin was our master. Now Christ is our Master.
Before conversion, we were spiritually dead. Now we are spiritually alive.
Before conversion, we could not please God. Now, by grace, we have both the desire and the power to pursue Him.
This is why Christian growth is possible. The same power that raised Jesus from the dead is now at work in His people.
Living Out Our Union with Christ
Paul’s doctrine of union with Christ leads to practical application. “So you also must consider yourselves dead to sin and alive to God in Christ Jesus” (Romans 6:11). To “consider” means to reckon, count, or regard something as true. Paul is calling believers to believe what God says about them.
You are not who you once were.
You are no longer a slave to sin.
You belong to Christ.
Therefore, do not let sin reign in your life.
Paul continues, “Do not present your members to sin as instruments for unrighteousness, but present yourselves to God” (Romans 6:13).
Every part of our lives matters.
Our eyes matter.
Our ears matter.
Our minds matter.
Our hands matter.
Our words matter.
Our desires matter.
Every part of who we are can either be presented to sin or presented to God. Because we have been united to Christ, we now have the freedom to live differently.
We no longer fight for acceptance. We fight from acceptance.
We no longer pursue holiness to earn God’s favor. We pursue holiness because we already belong to Him.
This is the freedom of grace.
The Shape of Holiness Is Christ Himself
The Christian life is not about becoming a slightly better version of yourself. It is about being united to Jesus Christ.
He is the Vine. We are the branches. Apart from Him, we can do nothing. But through Him, we bear fruit.
Because we are united with Christ, we have died to sin. Because we are united with Christ, we have been raised to new life. Because we are united with Christ, we can pursue holiness with confidence.
The shape of holiness is not self-improvement.
The shape of holiness is Christ Himself.
And the more closely we abide in Him, the more our lives will begin to reflect Him.
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