Dealing with the Root

Dealing with the Root

How Sanctification Works in Real Life

Before you pour a concrete slab in Florida, you don’t just mow the palmettos—you rip out the roots. If you don’t, those roots will press through and split the foundation later. Sin works the same way. It hides under the surface, plays the long game, and—left alone—can reproduce an entire forest of trouble.

This post is about that process—sanctification—from a biblical perspective. No sugar-coating, just straight talk and solid hope.

Salvation in Three Tenses (and Where Sanctification Fits)

Scripture speaks of salvation in three tenses:

  1. Justification (Past, once-for-all)
    God declares the sinner righteous because of Christ alone (Rom. 5:1). It’s forensic, instant, and complete—not by works (Eph. 2:8–9). You will never be more justified than you are at the moment of conversion.
  2. Sanctification (Present, lifelong)
    God makes the justified sinner holy in heart and conduct (1 Thess. 4:3; John 17:17). It’s a Spirit-driven, Word-shaped, church-anchored, effort-requiring process. We work because God works in us (Phil. 2:12–13).
  3. Glorification (Future, certain)
    God will transform our lowly bodies to be like Christ’s glorious body (1 Cor. 15:51–53). That’s coming, and it’s guaranteed.

What Sanctification Is (and Isn’t)

  • It’s union with Christ applied.
    The gospel not only pardons our guilt but transforms our life. Sanctification flows from the reality that we have been united to Christ in His death and resurrection (Rom. 6:5). That means we are no longer slaves to sin—we belong to Him.
  • It’s definitive and progressive.
    At conversion, God decisively breaks sin’s dominion—this is definitive sanctification (Rom. 6:6–7). From that moment on, the Christian enters a lifelong journey of being gradually conformed to Christ’s likeness—this is progressive sanctification (2 Cor. 3:18).
  • It’s both God’s work and our work.
    Sanctification is driven by the Spirit’s power (Gal. 5:16), but it demands intentional obedience on our part (Heb. 12:14). God provides the power; we provide the pursuit.
  • It’s deeper than behavior modification.
    Real holiness isn’t just external compliance—it’s the Spirit transforming our loves, desires, and affections. New habits, yes—but they spring from a new heart (Ezek. 36:26–27).
  • It’s a battle, not an option.
    The call to holiness is not for “extraordinary Christians”—it’s the normal Christian life. To have no battle against sin is to have no evidence of new life (Heb. 12:14).
  • It’s communal, not isolated.
    God designed sanctification to take place in the life of the church—under preaching, in the sacraments, in mutual exhortation, and in accountability (Heb. 3:13; Acts 2:42). Lone-ranger Christianity is stunted Christianity.
  • It’s not yet complete.
    Even the most mature believer still battles indwelling sin (Rom. 7:21–25). Sanctification is real, but not perfected until glory. Progress, not perfection, is the expectation.

Your Part: Killing Sin and Cultivating Life

The classic categories are mortification (putting sin to death) and vivification (bringing righteousness to life). Practically:

  • Name the root.
    Patterns often have a long memory. Get specific about the “old pathways”—fear of man, approval addiction, anger, lust, greed, cynicism. Ambiguity is the ally of sin.
  • Renew the mind with the Word.
    No renewal without Scripture (Rom. 12:2; John 17:17). Read, meditate, memorize, and obey—in community.
  • Use the ordinary means of grace.
    Lord’s Day worship, the preached Word, the sacraments rightly received, prayer, fellowship, and discipline. God designed normal, weekly rhythms to do supernatural work (Acts 2:42).
  • Walk by the Spirit.
    The Spirit produces the fruit (Gal. 5:16–24). You can’t white-knuckle fruit; you sow to the Spirit in the means God appointed.
  • Practice repentance quickly.
    Don’t manage sin; mortify it (Col. 3:5). Confess specifically to God—and, when needed, to a trusted brother or sister. Bring it into the light before God drags it there.
  • Pursue accountability, not co-dependence.
    Invite inspection without outsourcing responsibility. Hebrews 3:13 Christianity: “Exhort one another every day … that none of you may be hardened by the deceitfulness of sin.”
  • Aim for progress, not perfectionism.
    Holiness is typically a slow burn, not a flash-bang. Expect potholes; refuse detours.

Three Grounding Truths for Weary Saints

  1. Know who you were.
    Identify and uproot the baptized baggage—old beliefs, habits, and coping mechanisms that need crucifying (2 Cor. 7:1).
  2. Know who you are.
    You are crucified with Christ and raised with Him (Gal. 2:20; Col. 3:1–4). Take heed lest you fall (1 Cor. 10:12), but stand in the gospel you received (1 Cor. 15:1–2).
  3. Know how change happens.
    By beholding the glory of the Lord, you are being transformed (2 Cor. 3:18). The more you look at Christ, the less attractive sin becomes. Change the gaze, change the game.

Scriptures to Meditate On This Week

  • John 17:17 — “Sanctify them in the truth; Your word is truth.”
  • Romans 12:1–2 — Present your bodies … be transformed by the renewal of your mind.
  • Philippians 2:12–13 — Work out your salvation … for it is God who works in you.
  • Galatians 5:16–24 — Walk by the Spirit … the fruit of the Spirit.
  • 1 Thessalonians 5:23–24 — The God of peace Himself sanctify you completely.

Resources for Further Study

Books (Accessible to Start)
  • J. C. Ryle, Holiness — Straight talk on sin, the fight, and growth.
  • Jerry Bridges, The Discipline of Grace — How grace and effort cohere.
  • Kevin DeYoung, The Hole in Our Holiness — Why holiness matters in the everyday.

Going Deeper
  • John Owen, The Mortification of Sin — The definitive Puritan field manual on killing sin: “Be killing sin or it will be killing you.”
  • John Murray, Definitive Sanctification — A seminal treatment on the once-for-all break with sin at conversion.
  • Sinclair B. Ferguson, Devoted to God (or The Holy Spirit) — Rich, pastoral theology of how the Spirit forms Christ in us.
  • Michael Allen, Sanctification — A modern theological treatment with historical depth.
  • John Piper (ed.), Act the Miracle — Essays on how God’s work and our work fit together.

Passages to Study Slowly
  • Romans 6–8; Galatians 5; Colossians 3; 1 Peter 1; 1 John.

A Final Word

If you’re in Christ, God isn’t negotiating with your sin—He’s uprooting it. He’ll use His presence, His providence, His people, and yes, even your critics. He will confront you, draw confession from you, and then put you back to work. Progress may be slow, but it’s real, and it’s certain, because He is faithful.

So today, name the root. Drag it into the light. Take up the ordinary means. Fix your eyes on Jesus. And keep going. The King has already signed your ledger. Now let Him deepen His work in your life.

Zach Terry

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The Maximum Life Blog

My name is Zach Terry. The thoughts and opinions expressed in this blog are my own, with occasional interjections from my bride of nearly 25 years, Julie. This format of publication is meant to allow for engagement and interaction. Feel free to comment. But please, be nice. 

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