The Life That Began by the Spirit Must Continue by the Spirit

There's a powerful truth that runs through the heart of Christianity, one that many believers miss: The same faith that saves us is the same faith that grows us.

Think about it. We come to Christ completely empty-handed, trusting entirely in His finished work on the cross. We recognize we can't earn salvation, can't work our way into God's favor, can't be good enough on our own. We receive forgiveness purely by grace through faith.

But then something strange happens.

Once we become Christians, we start believing that spiritual growth depends on us—our discipline, our effort, our ability to follow the rules and check off the spiritual to-do list. We shift from grace to grinding, from faith to flesh, from resting in Christ to striving in our own strength.

When We Forget What Got Us Here

In sports, championship coaches often remind their teams: "Remember what got us here." Teams that win do so because they stay true to their identity and approach. Teams that lose often forget who they are and try to be something they're not.

The Christian life works the same way.

The Galatian believers had experienced this very problem. They had received Christ by faith, experienced the power of the Holy Spirit, and seen God work miracles among them. But false teachers convinced them that while they started by grace, they needed to finish by their own effort—following ceremonial laws, getting circumcised, performing religious rituals.

They forgot what got them there.

Justification AND Sanctification Are by Faith

Here's the revolutionary truth: We are justified by faith through the finished work of Jesus FOR us, and we are sanctified by faith through the ongoing work of the Holy Spirit IN us.

Justification means being declared righteous—receiving right standing before God. This happens the moment we trust in Christ. His perfect righteousness is credited to our account, and our sin is placed on Him.

Sanctification means living righteously—actually becoming more like Jesus in our thoughts, attitudes, and actions. This is the lifelong process of spiritual growth.

Both happen by faith. Both are works of grace. Both depend on God's power, not ours.

The Bible asks the Galatians a piercing question: "Having begun by the Spirit, are you now being perfected by the flesh?" In other words, did God start the work only to hand it off to you to finish? Of course not! The God who began a good work in you will be faithful to complete it.

The Evidence Was Always Faith

To drive this point home, Scripture takes us back to Abraham—the father of the Jewish faith, the one the false teachers claimed to represent. Abraham lived hundreds of years before the Law was even given. He wasn't saved by following rules or performing rituals.

Genesis tells us: "Abraham believed God, and it was counted to him as righteousness."

Abraham was a pagan idol-worshipper when God found him. He wasn't seeking God; God sought him. And when God made promises, Abraham believed—and that faith was credited as righteousness. Not his works. Not his goodness. Not his obedience. His faith.

And here's the beautiful part: Abraham received this righteousness before he was circumcised. The outward sign came after the inward reality. God was showing from the very beginning that salvation would always be by grace through faith—not just for Jews, but for all nations.

The Gospel was preached to Abraham: "In you shall all nations be blessed."

The Curse and The Cross

But there's a problem. The Law reveals a standard we cannot meet: "Cursed is everyone who does not abide by all things written in the book of the Law and do them."

Notice the word "all." If you're going to be justified by the Law, you must keep all of it. Breaking one commandment makes you a lawbreaker. We've all fallen short. We're all under the curse.

This is where the cross becomes breathtakingly beautiful.

"Christ redeemed us from the curse of the law by becoming a curse for us—for it is written, 'Cursed is everyone who is hanged on a tree.'"

Why was Jesus crucified? Why specifically hung on a wooden cross?

In the Old Testament, lawbreakers deserving death were executed and hung on a tree as a public spectacle. Everyone who saw them knew: this person is cursed by God, rejected by God.

The religious leaders wanted Jesus crucified for exactly this reason—to prove He was cursed and rejected by God.

But in God's sovereign plan, they were right for the wrong reason.

Jesus WAS cursed. Jesus WAS rejected by the Father. But not for His own sin—for ours. He who knew no sin became sin so that we might become the righteousness of God in Him.

On the cross, a great exchange happened: our curse placed on Him, His righteousness given to us.

Living by What We Rely On

Here's a penetrating principle: Whatever you rely on is what you will live by.

If you rely on success and achievement to give your life meaning, you'll live constantly chasing the next promotion, the next accomplishment, never satisfied.

If you rely on possessions and experiences to bring fulfillment, you'll live always wanting more, always needing the next purchase or trip.

If you rely on your own good works and moral performance to make you acceptable to God, you'll live in constant anxiety and judgment—either proud when you succeed or crushed when you fail.

But "the righteous shall live by faith."

When you rely on God's grace—when you trust that Jesus has done everything necessary for your salvation and acceptance—then you live by faith. You rest in His finished work. You depend on the Holy Spirit's power rather than your own strength.

Sanctification Is Gospel-Advancement

So what is sanctification, really?

Sanctification is the process of the Holy Spirit advancing the Gospel in and through every area of your life.

It's taking the truth of your justification—that you are forgiven, declared righteous, and fully accepted in Christ—and applying it to your thoughts, emotions, relationships, struggles, and habits.

This is why our struggles with sin are ultimately Gospel issues.

Struggle with lying? The root issue isn't just "try harder to tell the truth." It's believing the lie that you need to impress people or hide who you really are. The Gospel says you're already fully known and fully loved by God—so you're free to be honest.

Struggle with sexual sin? The root issue isn't just "have more discipline." It's believing the lie that satisfaction can be found outside God's design. The Gospel says Jesus satisfies more deeply than any physical pleasure ever could.

Every sin struggle traces back to a place where we're not believing or applying the Gospel.

Participating With the Spirit

This doesn't mean spiritual disciplines are unimportant. Reading Scripture, gathering with believers, prayer, generosity—these all matter tremendously.

But they don't work by checking them off a religious to-do list.

When we read the Bible, we're not just reading words—we're meeting with the Author Himself, the Holy Spirit who inspired Scripture and now lives in us. By the Spirit, the Word opens us as we open the Word.

When we gather for worship, we're not just fulfilling an obligation—we're participating with the Spirit in the presence of God alongside His people.

When we give generously, we're not earning God's favor—we're participating with the Spirit as He frees our hearts from loving the world more than Jesus.

It's all participation with the Holy Spirit, who is applying the finished work of Christ to every area of our lives.

The Question That Changes Everything

So here's the question to wrestle with: What are you trying to do in the flesh that was meant to be done by the Holy Spirit?

Where are you exhausting yourself trying to be holy through sheer willpower? Where are you frustrated because you keep failing? Where have you become self-righteous because you're actually succeeding at religious performance?

The Christian life isn't about trying harder. It's about trusting deeper—trusting that the same grace that saved you is sufficient to transform you, that the same Spirit who made you alive in Christ is powerful enough to make you like Christ.

Don't forget what got you here.

You began by the Spirit. Continue by the Spirit. Live by faith. Rest in grace. And watch the Holy Spirit do what only He can do—make you more like Jesus, one day at a time.