A Galatians 2:20c sermon on faith as the ongoing operating system of the Christian life — the cord through which the believer receives life from Christ rather than striving to generate it.
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The Life I Now Live Is Still Lived "In the Body"
There is a kind of Christian exhaustion that does not come from laziness, rebellion, or lack of sincerity.
It comes from trying to live the Christian life by the wrong power source.
Imagine inheriting a state-of-the-art manufacturing plant. The machinery is flawless. The blueprints are perfect. The supply lines are ready. The power available to the facility is more than sufficient. Everything needed for production has already been provided.
But instead of turning on the main power, you stand on the factory floor and try to run the entire plant by hand.
You manually crank the conveyor belts. You drag materials from one station to another. You push the machines into motion by sheer force. You sweat. You strain. Your hands bleed. And after hours of effort, the output is pitiful.
The problem is not that the factory lacks power. The problem is that you are not operating according to the mechanism by which the factory was designed to run.
That image exposes the misery of many believers.
They know Christ died for them. They know they have been forgiven. They know the old self was crucified with Christ. They know Christ lives in them. But when it comes to the actual living of the Christian life — the Monday morning, Tuesday afternoon, ordinary-body, real-pressure, real-temptation, real-weakness life — they revert to manual operation.
They try to crank the conveyor belt by hand.
They live by effort rather than faith.
Paul gives us the missing mechanism in Galatians 2:20:
> "The life I now live in the body, I live by faith in the Son of God…"
This is not a decorative phrase. It is not religious filler. It is not Paul adding a spiritual slogan to an otherwise profound statement.
It is the operating system of the Christian life.
The believer has died with Christ. Christ now lives in the believer. The present life is lived by faith.
If we miss this, we will turn Christianity into religious exhaustion. We will try to live out resurrection life with crucified flesh. We will try to produce the fruit of the Spirit with the machinery of self-effort. We will try to live from Christ while still depending on ourselves.
That cannot work.
The life we now live must be lived by faith.
Paul is very realistic.
He says: "The life I now live in the body…"
That phrase matters.
Paul does not pretend that union with Christ removes us from ordinary human existence. He does not say the Christian life is lived above the body, away from weakness, outside temptation, beyond pressure, or beyond emotional strain.
He says the life we now live is lived **in the body**.
That means the Christian life is lived in the place where we still get tired. It is lived in the body that still feels pain, hunger, stress, illness, aging, and weakness. It is lived in the body that still encounters temptation. It is lived in the body that still sits in traffic, receives hard news, faces conflict, pays bills, struggles with sleep, carries grief, and feels pressure.
This is important because many people imagine spirituality as escape.
They think that if they become spiritual enough, they will somehow rise above the friction of daily life. They assume spiritual maturity means they will no longer feel weakness, no longer experience temptation, no longer struggle with emotions, no longer face the ordinary burdens of the body.
But Paul gives us no such illusion.
Christian living is not escape from embodied life. It is Christ-sustained life within embodied weakness.
We are not removed from the arena. We are sustained within it.
That distinction is massive.
If the goal is escape, then every hardship feels like failure. Every difficult conversation feels like defeat. Every temptation feels like proof that something is wrong. Every emotional struggle becomes evidence that we are not spiritual enough.
But if the goal is sustenance, then hardship does not surprise us. Weakness does not destroy us. Temptation does not define us. Pressure becomes the very arena where the life of Christ must be depended upon.
The body is not the enemy of faith. It is the place where faith is lived.
Paul does not say, "The life I now live in the body, I live by denial." He does not say, "The life I now live in the body, I live by escape." He does not say, "The life I now live in the body, I live by pretending I am no longer weak."
He says: "I live by faith."
Faith Must Be Recovered From Shallow Definitions
If faith is the operating mechanism of the Christian life, then we must define it carefully.
The word "faith" has been badly weakened in ordinary usage. For many, faith means a vague religious feeling. For others, it means optimism. For some, it means mental agreement with certain facts. For others, it means trying to believe hard enough so God will do what they want.
None of those definitions is sufficient.
Faith is not mere mental agreement.
A person can agree that an airplane is capable of flight. He can study aerodynamics, examine the engineering, and pass a test on lift and thrust. But none of that transports him anywhere unless he boards the plane.
Mental agreement may recognize truth, but faith entrusts the self to it.
Faith is also not an emotional feeling.
If faith depends on emotional intensity, then our spiritual life becomes hostage to sleep, stress, blood sugar, hormones, health, personality, and circumstances. A person may feel spiritually strong on Monday morning after a moving sermon and feel spiritually numb by Wednesday afternoon. If feeling is the measure of faith, then assurance will rise and fall with emotional weather.
But faith is deeper than feeling.
Faith is not positive thinking.
Positive thinking assumes a favorable outcome. It says, "Things will work out the way I want." Biblical faith is not trust in a desired outcome. It is trust in a Person. It may say, "I do not know how this will work out, but I know Christ is sufficient."
Faith is not pretending circumstances are easy. Faith is not manufacturing emotional certainty. Faith is not believing in belief. Faith is not spiritual self-hypnosis.
Faith is active, ongoing reliance upon Christ.
That phrase matters: **active, ongoing reliance**.
Faith is active because it intentionally turns away from self-dependence and lays hold of Christ. It is ongoing because Paul is not describing a one-time past event only. The life he now lives, he continues to live by faith. And it is reliance because faith does not generate life. Faith receives life from Another.
Think of a swimmer caught in a rip current. His muscles are failing. He cannot generate enough strength to save himself. A rescue boat throws him a life preserver. The life preserver supplies the buoyancy. The swimmer does not create the buoyancy. But he must actively cling to what has been given.
The effort is in the grip, not the buoyancy.
So it is with faith.
Faith does not create the power. Faith clings to the One who has it.
Faith does not produce the life. Faith receives the life of Christ.
Faith does not make Christ sufficient. Faith depends upon the Christ who already is sufficient.
Faith as the Umbilical Cord
Brother Doug gave us a powerful image for this reality:
> Faith is like the umbilical cord.
That picture deserves careful attention because it gives flesh and form to Paul's theology.
An unborn child does not generate its own life. The child does not breathe oxygen through its own lungs. The child does not digest food through its own stomach. The child does not filter waste independently. The child does not produce the nutrients required for growth.
Everything necessary for life is supplied from outside the child and delivered through the cord.
The child lives by receiving.
That is the spiritual logic of faith.
Faith is not the source of life. Christ is. Faith is not the nourishment. Christ supplies it. Faith is not the power. Christ is the power. Faith is the connection, the conduit, the means by which the believer lives from Christ.
This image guards us from pride and despair at the same time.
It guards us from pride because we are not the source. We do not produce spiritual life from within ourselves. We do not manufacture patience, love, holiness, endurance, forgiveness, purity, courage, or wisdom by sheer internal force.
It guards us from despair because our emptiness is not the end. If the source is outside us, then our weakness does not have the final word. Our lack does not doom us. Our insufficiency is not a crisis if Christ Himself is our supply.
The unborn child is not ashamed that it receives life through another. That is how it was designed to live.
Likewise, the believer should not be ashamed of dependence.
Dependence is not spiritual immaturity. Dependence is the structure of the Christian life.
The mature Christian is not the one who has outgrown dependence on Christ. The mature Christian is the one who has learned more deeply that he never had life in himself to begin with.
The Source Is External
The first lesson from the umbilical cord image is this:
> The source is external.
Biologically, the child's supply comes from the mother. Spiritually, the believer's life comes from Christ.
This is a direct assault on self-reliance.
We are trained to look inward for the resources we need. Find your strength. Trust yourself. Believe in yourself. Dig deeper. Push harder. Become your own source.
But the gospel tells us the opposite.
You are not the source. You are the receiver.
That is not an insult. It is liberation.
If I believe I must be the source of my patience, then every difficult person becomes a threat. If I believe I must be the source of my strength, then every burden becomes a crisis. If I believe I must be the source of my purity, then every temptation becomes a test of whether I can hold myself together. If I believe I must be the source of my wisdom, then every decision becomes crushing.
But if Christ is the source, then my weakness is not the end of the story.
I may honestly say: "Lord, I do not have what this moment requires. But You do."
This is not a motivational trick. It is theological realism.
Jesus said: "Apart from me you can do nothing." (John 15:5, NIV)
Nothing.
That word is severe mercy. It strips us of illusion. It tells us the truth about ourselves so we will stop trying to be what only Christ can be.
Apart from Him, we may produce activity. Apart from Him, we may produce religious motion. Apart from Him, we may produce public impressions. Apart from Him, we may produce temporary self-control.
But apart from Him, we cannot produce the life of Christ.
Only Christ can produce the life of Christ.
The Connection Must Remain
The second lesson is this:
> The connection must remain.
The umbilical cord is not decorative. It is not symbolic only. It is the channel through which life is supplied.
Faith functions this way in the Christian life.
Faith is not the nutrient. Faith is not the oxygen. Faith is not the life. Faith is the conduit.
This distinction is crucial.
Many believers accidentally turn faith into a work. They begin examining the quality of their faith as though faith itself were the power source. They ask, "Is my faith strong enough? Is my faith pure enough? Is my faith intense enough? Did I doubt too much? Did I believe hard enough?"
That turns faith into merit.
But faith does not earn anything. Faith receives everything.
Faith is like an empty hand receiving water. The hand does not purchase the water. It simply receives what is given. Faith is like copper wiring in a house. The wire does not earn electricity. It does not generate electricity. It simply conducts what comes from the power source.
Faith is the cord, not the life.
That means the power of faith does not reside in the psychological intensity of the believer. The power of faith resides in the object of faith.
A weak hand can receive strong medicine. A trembling wire can carry real electricity if it is connected to the right source. A fragile faith can lay hold of a mighty Christ.
This protects weary believers from endless self-auditing.
The question is not, "How impressive is my faith?" The question is, "How sufficient is Christ?"
Faith does not look at itself and say, "I am strong." Faith looks at Christ and says, "He is able."
The Child Does Not Strive. The Child Receives.
The third lesson is this:
> The child does not strive. The child receives.
This is offensive to the flesh.
We live in a world that praises striving. We are conditioned to believe that progress comes through relentless self-production. Work harder. Push longer. Prove yourself. Outperform. Hustle. Grind.
So when we hear that the believer lives by receiving, we may mistake that for passivity.
But receiving is not laziness.
There is a difference between Spirit-enabled action and flesh-driven striving.
Striving is the ego-driven attempt to generate life independently from Christ. It is the unborn child trying to feed itself. It is the factory worker manually cranking the conveyor belt while unlimited power sits unused. It is the branch trying to manufacture fruit apart from the vine.
Striving says: "I must produce this from myself."
Faith says: "I must receive this from Christ."
That does not mean the believer does nothing. The New Testament is full of commands, exhortations, warnings, and calls to action. But gospel obedience does not begin with autonomous self-effort. It begins with dependence.
Faith applies effort to maintaining the connection, not creating the life.
This means the goal of a difficult day is not merely to muscle through. The goal is to stay connected. The goal is not to prove how strong we are. The goal is to refuse self-sufficiency and keep drawing from Christ.
When stress rises, the flesh says, "Take control." Faith says, "Stay connected."
When temptation comes, the flesh says, "Try harder." Faith says, "Depend deeper."
When weakness appears, the flesh says, "Hide it." Faith says, "Bring it to Christ."
When failure happens, the flesh says, "Run away." Faith says, "Return."
Faith is not you trying harder. Faith is you staying connected.
Growth Happens Through Sustained Connection
The fourth lesson is this:
> Growth happens naturally through sustained connection.
An unborn child does not focus on growing fingers, forming lungs, developing bones, or strengthening organs. Growth happens because life is being supplied. The child grows because the connection remains.
This helps us understand sanctification.
Many believers become obsessed with spiritual outcomes. They say: I need to be less angry. I need to be more patient. I need to forgive more quickly. I need to become more disciplined. I need to overcome this sin. I need to become more loving.
Those desires may be good. But if we obsess over outcomes while neglecting dependence, we create anxiety rather than growth.
Fruit is not manufactured by staring at fruit. Fruit comes from abiding in the vine.
Jesus said: "Remain in me, as I also remain in you. No branch can bear fruit by itself; it must remain in the vine." (John 15:4, NIV)
The branch does not produce fruit by independent exertion. The branch bears fruit because life flows from the vine.
So it is with the believer.
Love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control are not plastic virtues glued onto a religious life. They are the fruit of the Spirit. They grow as the believer lives in dependence on Christ.
This does not remove discipline. It reorders discipline.
Spiritual disciplines are not mechanisms for earning life. They are appointed means of staying near the source. Prayer, Scripture, worship, fellowship, confession, obedience, and the Lord's Supper are not attempts to purchase grace. They are ways we keep receiving, remembering, and depending.
The point is not to manufacture fruit.
The point is to abide in Christ.
Faith Is Means, Not Merit
One of the most important distinctions in the Christian life is the distinction between **means** and **merit**.
Merit earns. Means receives.
Our world is built on merit. Work the hours, earn the paycheck. Meet the standard, receive the grade. Hit the target, get the bonus. Perform well, gain approval.
Because we live in that system constantly, we easily smuggle it into our theology.
Even faith can be twisted into merit.
We begin to think: "If I believe strongly enough, God will bless me." "If I eliminate all doubt, God will answer me." "If my faith is intense enough, I will receive what I want."
That is not biblical faith. That is religious transaction.
Faith does not purchase grace. Faith does not obligate God. Faith does not turn the believer into a customer and God into a vendor.
Faith receives Christ.
The empty hand does not boast in receiving bread. The wire does not boast in carrying electricity. The cord does not boast in supplying life.
Faith has no saving merit in itself. Its value is entirely found in the One to whom it is joined.
This is why we must not have faith in faith.
Faith in faith turns the soul inward. It makes our own believing the center. It leads either to pride when we think our faith is strong or despair when we fear our faith is weak.
Faith in Christ turns the soul outward.
It says: "My confidence is not in the strength of my grip, but in the strength of the Savior who holds me."
That is freedom.
Faith Is Only as Strong as Its Object
Paul says: "I live by faith in the Son of God…"
The object of faith is not vague. It is not faith in the universe, faith in optimism, faith in outcomes, faith in self, or faith in faith.
It is faith **in the Son of God**.
This matters because faith is only as strong as its object.
A person may have intense faith in a weak object and still collapse. A person may have trembling faith in a strong object and be sustained.
Imagine a massive industrial power cable plugged into a dead battery. The cable may be impressive, but the factory will remain dark. Now imagine a small, unimpressive wire connected to a powerful generating station. The strength is not in the wire. The strength is in the source.
So it is with Christ.
The strength of the Christian life is not the believer's emotional intensity. It is not personality, temperament, discipline, intelligence, or determination.
The strength is Christ.
He is the Son of God. He loved us. He gave Himself for us. He died. He rose. He reigns. He lives in His people by His Spirit. He sustains what He saves.
This means we must stop plugging our trust into dead batteries.
Faith in self will fail because self is finite. Faith in feelings will fail because feelings change. Faith in outcomes will fail because outcomes are not sovereign. Faith in religious performance will fail because performance cannot justify. Faith in human approval will fail because people are unstable.
But faith in the Son of God rests upon the One who conquered death.
The object of faith is not fragile.
Christ is sufficient.
Faith and Temptation
How does this work when temptation comes?
The old way says: "I must resist this on my own."
That approach relies on willpower. It clenches the jaw, tightens the fist, and tries to outlast desire. Sometimes that may appear to work for a while. But willpower is limited. Human resolve wears down. The flesh does not become holy by being suppressed.
Faith takes a different posture.
Faith says: "Christ in me is stronger than this."
That sentence is not self-confidence. It is Christ-confidence.
The believer does not say, "I am strong enough." The believer says, "I am not strong enough, but Christ is."
Faith does not deny the danger of temptation. It refuses to face temptation disconnected from Christ.
This changes prayer in the moment of temptation.
Instead of merely saying, "I must not do this," faith cries: "Lord Jesus, You are my purity. You are my strength. You are my way of escape. I cannot defeat this in myself. I depend on You now."
This is not passivity. It is active dependence.
Faith brings the temptation into the presence of Christ rather than trying to fight it alone in the dark.
Faith and Weakness
Weakness often exposes what we truly trust.
When we come to the end of our capacity, the old way says: "I do not have what it takes."
That may be true.
The problem is not admitting weakness. The problem is treating weakness as final.
Faith says: "He is sufficient."
Faith does not pretend we are strong. It agrees with reality. It says, "I am limited. I am needy. I am not enough." But then it adds, "Christ is enough."
This is why weakness can become a place of grace rather than despair.
Paul learned this when the Lord said to him: "My grace is sufficient for you, for my power is made perfect in weakness." (2 Corinthians 12:9, NIV)
Weakness is not the enemy of faith. Weakness is often the doorway into deeper dependence.
The believer does not need to fake strength. The believer needs to draw from Christ.
Faith and Obedience
Faith also reshapes obedience.
The old way says: "I must perform to be accepted."
That is slavery.
It produces either anxiety or pride. Anxiety comes when we know we are failing. Pride comes when we deceive ourselves into thinking we are succeeding.
But gospel obedience begins somewhere else.
Faith says: "I obey because I am already accepted in Christ."
This does not weaken obedience. It purifies it.
When obedience is rooted in fear, it becomes self-protective. When obedience is rooted in grace, it becomes grateful. When obedience is performed to earn love, it becomes heavy. When obedience flows from received love, it becomes worship.
The believer does not obey to become a child of God. The believer obeys because he is a child of God.
The believer does not obey to purchase union with Christ. The believer obeys because he is united to Christ.
The believer does not obey to secure the Father's love. The believer obeys because the Son of God "loved me and gave himself for me."
Faith receives grace and then moves in obedience from grace.
Faith in Daily Living
Faith is not only for crisis moments.
It is not a glass-case emergency tool, used only when life collapses. Faith is the ordinary operating system of the Christian life.
The life I now live in the body, I live by faith.
That includes traffic. That includes emails. That includes parenting. That includes marriage. That includes ministry. That includes temptation. That includes fatigue. That includes financial pressure. That includes grief. That includes decisions. That includes the quiet moments when no one sees.
Faith is not merely for the dramatic. Faith is for the mundane.
In daily life, faith may sound like this:
"Lord, I am irritated. Be my patience." "Lord, I am afraid. Be my peace." "Lord, I am tempted. Be my strength." "Lord, I am confused. Be my wisdom." "Lord, I am weary. Be my endurance." "Lord, I am proud. Humble me and help me depend on You." "Lord, I am about to speak. Govern my tongue." "Lord, I am about to act. Let this come from Your life, not my flesh."
This is the moment-by-moment life of faith.
Not dramatic. Not flashy. But vital.
The cord must remain open.
Why We Keep Returning to Self-Reliance
If this mechanism is so freeing, why do we keep abandoning it?
Because self-reliance is deeply ingrained.
The flesh wants control. The ego wants credit. The old self wants to be the hero. Under pressure, our instinct is to say: "I'll take it from here."
That is when the cord gets pinched.
Self-reliance feels natural because we have practiced it for so long. We default to control, manipulation, overworking, anxiety, defensiveness, and performance. We may confess dependence on Sunday and then live by effort on Monday.
A second reason is that we misunderstand faith. We treat it as belief rather than dependence. We think knowing the doctrine is the same as living by the doctrine.
It is not.
Knowing about the power source does not mean the factory is running by that power. Knowing about the umbilical cord does not mean we are depending on Christ in the moment.
Truth must be trusted.
A third reason is that we measure faith by feelings.
When we feel spiritually alive, we assume we are connected. When we feel emotionally numb, we assume something is wrong. But the unborn child does not consciously feel every nutrient passing through the cord. The mechanism works even when the child does not perceive it.
Likewise, faith often operates beneath emotional perception.
There will be days when faith feels warm and strong. There will be days when faith feels weak and trembling. The question is not, "Do I feel connected?" The question is, "Am I depending on Christ?"
Faith trusts the reality of Christ more than the instability of emotional weather.
This is crucial.
We are saved by faith, but we often try to live by effort. That contradiction is killing our joy.
The Cross, Christ in You, and the Life Now Lived
Galatians 2:20 gives us a complete gospel structure.
The past event is the cross: "I have been crucified with Christ…"
The present reality is union: "Christ lives in me…"
The ongoing mechanism is faith: "The life I now live in the body, I live by faith…"
The personal object is Christ: "…in the Son of God…"
The motive and foundation is love: "…who loved me and gave himself for me."
This means the Christian life is gospel-shaped from beginning to end.
We receive the crucified Christ by faith. We live from the indwelling Christ by faith. We endure the embodied life by faith. We obey the Son of God by faith. We rest in His love by faith.
Without faith, doctrine remains distant. Truth remains abstract. We may build a theological structure in our minds while starving in our souls.
Faith brings the truth into the bloodstream.
Faith is how the believer lives from what Christ has accomplished, from who Christ is, and from what Christ supplies.
To the Exhausted Believer
If you are exhausted, the answer is not simply, "Try harder."
You may be exhausted because you have been trying to produce what you were designed to receive.
You are not called to generate the life of Christ. You are called to depend on Christ.
Stop trying to manually crank the conveyor belt. Stop trying to be the source. Stop confusing spiritual seriousness with self-reliant striving.
Return to the supply.
Christ does not call you to live the Christian life apart from Him. He calls you to live by faith in Him.
To the Striving Believer
If you are striving to earn acceptance, hear this clearly:
You are not running toward grace. You are running from grace if you think you must earn what Christ has already secured.
Obedience matters. Holiness matters. Faithfulness matters. But they do not purchase your standing before God.
Christ has secured that.
Live from grace, not toward it.
The wire earns nothing. The cord purchases nothing. The empty hand does not pay for the gift.
Faith receives.
To the Inconsistent Believer
If you are discouraged because you keep failing, do not confuse faith with perfection.
Faith is not never drifting. Faith is returning.
Faith is noticing that you have pinched the cord and then opening your hand again. Faith is realizing you have returned to self-reliance and then turning back to Christ. Faith is leaning again.
The Christian life is full of repentance, returning, and renewed dependence.
Do not stay away because you failed. Return because Christ is sufficient.
To the Unbeliever
If you are trying to live disconnected from Christ, you are trying to draw life from a source that cannot sustain you forever.
Your willpower is limited. Your emotions are unstable. Your body is fragile. Your plans are uncertain. Your achievements cannot save you. Your self-made identity cannot bear the weight of eternity.
You were not made to be your own source.
Christ does not merely offer advice. He offers life.
The call of the gospel is not, "Improve yourself until God accepts you." The call of the gospel is, "Come to Christ." He died for sinners. He rose from the dead. He gives life to those who trust Him.
The life you need is not inside you.
It is found in the Son of God.
Final Reflection
The life you now live in the body must be lived somehow.
You will either live it by self-reliance or by faith. You will either crank the machinery by hand or turn to the power source. You will either try to generate life or receive it from Christ. You will either pinch the cord through pride and control or live in conscious dependence.
So ask honestly:
Where am I most anxious right now? Where am I most exhausted? Where am I striving hardest? Where am I trying to produce what Christ alone can supply? Where have I turned faith into merit? Where am I trusting my feelings more than Christ? Where am I living by effort after being saved by faith?
The answer is not despair.
The answer is return.
Faith is not you trying harder. Faith is you staying connected.
The life you now live in the body, live by faith in the Son of God.
Christ is the source. Faith is the cord. You are the receiver.
Stop pumping. Stop pretending. Stop striving as though you are alone.
Live from Christ.
> "The life I now live in the body, I live by faith in the Son of God…" > — Galatians 2:20c, NIV
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