What Does It Mean to Live a Holy Life? Body, Mind, and the Call to True Spirituality

Holiness is one of those words that gets thrown around in church circles, but what does it actually mean to live it out? This post unpacks what Scripture teaches about holiness in our bodies, our minds, and our hearts, and why it matters more than most of us realize.

What Is Holiness, Really?

Holiness is not just about following a list of rules. At its core, holiness is about being set apart for a specific function in a rightful place. God is holy because He is distinct, separate, and unlike anything in creation.

We live in a morally and physically structured universe that we did not create. Our lives work because we act as if the laws of morality are as real as the laws of nature. When those moral laws are ignored, cultures fall apart. They always do.

If God created us with distinct, holy purposes, then our calling is to recognize Him as Creator and to live as He intends. That is the foundation of holy living.

Why Submission Is Part of Holiness

One of the most countercultural aspects of holiness is submission. In a Presbyterian context, this means submitting to church leadership, to civil authorities, to employers, and within families. It is not always comfortable, but it is part of what it means to be set apart.

Romans 6:13 puts it plainly: "Do not present your members to sin as instruments for unrighteousness, but present yourselves to God as those who have been brought from death to life, and your members to God as instruments for righteousness." - Romans 6:13 English Standard Version (ESV)

We do not live for ourselves. We live for the glory of God.

Holiness Is Corporate, Not Just Personal

Individual holiness matters, but it builds up the whole body of Christ. In the Old Testament, even those who could not enter the temple were expected to pray while the high priest was inside. Everyone participated.

God called Israel to be a kingdom of priests and a holy nation. Peter echoed this, calling believers a holy priesthood offering spiritual sacrifices to God through Jesus Christ. The church is not primarily a place to meet our needs. It is a place for the glory of God.

What Is a Sacrifice of Praise?

Hebrews 13:15 tells us: "Through him then let us continually offer up a sacrifice of praise to God, that is, the fruit of lips that acknowledge His name." - Hebrews 13:15 English Standard Version (ESV)

A sacrifice is never free. It costs something. If you come to worship expecting to like everything, where is the sacrifice? Offering praise even when it is uncomfortable, even when the style is not your preference, is part of what it means to worship God with your whole self.

Doing good and sharing what you have are also described as sacrifices that please God. Holiness includes faithful attendance, hearing God's Word, receiving the sacraments, submitting to church discipline, and praising His name. None of that is always easy.

How Should Christians Use Their Bodies to Honor God?

First Corinthians 6:20 is direct: "You were bought with a price. So glorify God in your body." - 1 Corinthians 6:20 English Standard Version (ESV)

This is not just about avoiding certain foods or substances. It means everything. If you are alive and in a body, you are called to glorify God with all that you do. How you drive. How you treat people. How you carry yourself in public. By intentionally holy living, we bear witness to the reality that God is real and that He has come to us.

Why the Renewed Mind Matters as Much as the Body

You cannot consistently act in a way that is different from how you see yourself. If you think of yourself only as a sinner, you will keep sinning. If you understand yourself as a saint who still stumbles, you will live differently.

Romans 12:2 gives the clearest instruction: "Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect." - Romans 12:2 English Standard Version (ESV)

Walking in the Spirit is not a rejection of the mind. It is a transformation of it. Paul describes two kinds of minds: the transformed mind that worships and serves the Creator, and the debased mind that worships the creation. There is no middle ground.

What Happens When the Mind Turns Away from God?

Romans 1 describes it clearly. When people knew God but did not honor Him or give thanks, their thinking became futile and their hearts were darkened. It is not that foolish thinking leads people away from God. It is the other way around. Turning away from God leads to foolish and futile thinking.

This is why understanding the culture around us matters. We need to recognize the worldview that is shaping the people we live alongside, not so we can assimilate into it, but so we know how to be holy within it and how to witness faithfully to those who do not yet know Christ.

Should Christians Adapt to the Culture Around Them?

There is a difference between speaking the language of your culture and adopting its values. Paul does not advise Christians to adapt their message to make it more palatable. He says to understand the culture so you know how to remain holy within it.

2 Corinthians 6:14 is clear: "Do not be unequally yoked with unbelievers. For what partnership has righteousness with lawlessness? Or what fellowship has light with darkness?" - 2 Corinthians 6:14 English Standard Version (ESV)

Christian holiness involves a clear-eyed analysis of the culture around us and a deliberate rejection of its godless ideology. That does not mean withdrawing from the world entirely. It means not letting the world set the terms for how we live and think.

Can We Actually Achieve Holiness on Our Own?

No. And that is the point.

We cannot think ourselves into holiness. We cannot discipline ourselves into it through sheer willpower. The transformation Paul describes in Romans 12 is a miracle. It requires the work of the Holy Spirit.

Psalm 51:1 captures the right posture: "Have mercy on me, O God, according to your steadfast love; according to your abundant mercy blot out my transgressions." - Psalm 51:1 English Standard Version (ESV)

True spirituality is based on what God has done for us, not what we do for Him. The sacrifice of praise flows from recognizing that Christ died for us, redeemed us, and sent His Spirit to dwell within us. When we try to earn holiness through our own effort, the fire goes out. When we focus on what He has done, the heart comes alive.

The Mind of Christ and the Body of Christ

God the Son offers us His holy body in the Lord's Supper. He is the true and final priest, the perfectly obedient Son, the perfect and effective sacrifice. Only through Christ can we be made holy.

Paul also calls us to have the mind of Christ. The gospel cannot make full sense without understanding the Creator-creation distinction. When we grasp that we are creatures made by a mighty God, it changes everything. It humbles us. It fills us with wonder. And it sets our hearts on fire.

John Wesley described his own transformation this way: "I felt my heart strangely warmed. I felt I did trust in Christ, Christ alone, for salvation. And an assurance was given me that he had taken away my sins, even mine, and saved me from the law of sin and death."

That is what a transformed life looks like. Not perfection, but a heart set on fire by grace.

Life Application

This week, choose one specific area of your daily life where you have been living on autopilot rather than intentionally for God's glory. It might be how you treat people at work, how you speak in frustrating moments, or how you engage with the culture around you. Ask God each morning to help you glorify Him in that specific area, and at the end of each day, reflect honestly on how it went. When you fall short, receive His forgiveness and keep going. Do not let failure become an excuse to stop trying.

Ask yourself these questions as you reflect:

• Am I presenting my body and mind to God as instruments of righteousness, or am I drifting along with the culture around me?
• When I come to worship, am I offering a genuine sacrifice of praise, or am I only comfortable when things are done the way I prefer?
• Is my pursuit of holiness driven by what God has done for me in Christ, or am I trying to earn it through my own effort?
• What would it look like this week to ask God what He wants, and then actually follow through when He answers?

Holiness is not a destination we arrive at on our own. It is a daily surrender to the One who is already holy, trusting that His Spirit is doing the work of transformation in us from the inside out.