The Call to Spiritual Maturity

Have you ever watched a teenager still drinking from a baby bottle? The image is jarring, uncomfortable even. Yet this striking metaphor captures exactly what the writer of Hebrews confronts when addressing spiritual immaturity in the church.
The passage from Hebrews 5:11-6:12 delivers both encouragement and warning about what it means to grow up in faith. It challenges us to move beyond spiritual infancy into the robust maturity God intends for every believer.
The Problem of Spiritual Stagnation
Time doesn’t automatically produce maturity. We all know people who’ve been Christians for decades yet show little evidence of growth. Their walk with Jesus looks remarkably similar to what it was twenty years ago. No deeper love. No increased wisdom. No greater obedience.
The Hebrews passage addresses this exact issue: “By this time you ought to be teachers, but you need someone to teach you again the basic principles of the oracles of God. You need milk, not solid food.”
These believers had been in the church long enough to be teaching others, yet they remained stuck at the starting line. They were toothless babies still demanding bottles while those around them enjoyed solid food.
What Constitutes Spiritual Maturity?
Spiritual maturity isn’t measured by how many Bible verses you’ve memorized or how many theology books line your shelves. Knowledge alone doesn’t equal maturity. You can be a subject matter expert in Scripture yet remain woefully immature in practice.
True spiritual maturity requires three essential components working together:
Knowledge – Understanding biblical truth and growing in awareness of God’s character and ways.
Faith – Trusting in Jesus Christ, believing His promises, and depending on His finished work rather than our own efforts.
Practice – Living out what we know, demonstrating the fruits of the Spirit, extending forgiveness, showing generosity, and walking in obedience.
When these three elements combine, they produce wisdom—the ability to apply biblical knowledge in real-life situations with faith-filled action.
A fully devoted follower of Jesus isn’t someone who knows everything but someone whose faith and practice match what they do know. When you learn that baptism is the first step of obedience, you get baptized. When you understand that Christians practice forgiveness, you actually forgive those who wrong you instead of gossiping about them.
The Elementary Doctrines
The writer of Hebrews lists six elementary teachings that form the foundation of Christian faith:
- Repentance from dead works
- Faith toward God
- Instructions about washings
- Laying on of hands
- Resurrection of the dead
- Eternal judgment
These basics are crucial. They’re the milk every new believer needs. But they’re meant to be a foundation, not the entire building. The author wants to discuss deeper truths—the high priesthood of Jesus in the order of Melchizedek, Christ as the final sacrifice, how He entered the true holy place through the heavens.
But he can’t get there if his audience remains stuck on the basics.
The challenge for us: How are we doing with the fundamentals? Do we truly understand that we’re accepted not through our performance but through Christ’s righteousness? Do we grasp that we’re made in God’s image with all the implications that carries? Do we live with awareness of final judgment?
The Sobering Warning
Then comes one of Scripture’s most challenging passages. The writer warns about those who have been “enlightened,” who have “tasted the heavenly gift,” “shared in the Holy Spirit,” “tasted the goodness of the word of God and the powers of the age to come,” yet fall away. For such people, he says, it’s impossible to restore them to repentance.
This passage has troubled believers throughout church history. What does it mean? Can Christians lose their salvation?
The most likely interpretation is that the writer addresses people within the church community who have experienced aspects of Christian life without ever truly committing to Christ. They’ve heard the gospel preached (enlightened). They’ve participated in communion (tasted the heavenly gift). They’ve witnessed Spirit-empowered ministry and perhaps felt conviction of sin (shared in the Holy Spirit). They’ve recognized the beauty of the gospel message (tasted the goodness of God’s word). They’ve seen miracles and signs (powers of the age to come).
Yet despite all this exposure, they’ve never placed their full trust in Jesus as Savior. And now they’re turning away, rejecting the only sacrifice available for sin. If you reject Christ’s finished work on the cross and seek salvation elsewhere, there is no other way back. Jesus is the only door.
This warning particularly addressed Jewish believers tempted to return to Old Testament sacrificial systems. But it speaks to anyone who would turn from Christ after encountering the truth of the gospel.
The Assurance of Salvation
After this stern warning, the tone shifts dramatically. “Though we speak in this way, yet in your case, beloved, we feel sure of better things—things that belong to salvation.”
The writer expresses confidence based on observable fruit in their lives. They’ve loved the saints. They’ve served others. They’ve endured persecution. They’ve had possessions confiscated for their faith. This fruit demonstrates genuine salvation.
Here’s the crucial balance: Our salvation depends entirely on Christ’s work, not our own. But our sense of salvation—our confidence, joy, and assurance—connects directly to how we live. Real faith produces real fruit.
The Call Forward
The passage concludes with an urgent exhortation: “We desire each one of you to show the same earnestness to have the full assurance of hope until the end, so that you may not be sluggish, but imitators of those who through faith and patience inherit the promises.”
Don’t be lazy in your faith. Don’t become dull of hearing. Don’t settle for spiritual infancy when God calls you to maturity.
Perhaps you’ve wandered from Jesus. Perhaps you prayed a prayer as a child but your life shows no evidence of transformation. Perhaps you’re playing dangerous games with sin while calling yourself a Christian. Today is the day to turn back, to confess, to commit fully to Christ.
Or maybe you are genuinely saved but you’ve plateaued. You’re stuck drinking spiritual milk when God has prepared a feast of solid food for you. It’s time to grow up, to dig deeper, to move beyond elementary doctrines into the rich depths of knowing Christ.
The invitation stands open. Jesus never turns away anyone who comes to Him. The question is: Will you come? Will you grow? Will you mature?
Your salvation depends on Christ’s finished work. But your experience of that salvation—the joy, the confidence, the freedom it brings—depends on how you live in response to His grace.
It’s time to put down the bottle and pick up the solid food God has prepared for you.