Living in the Spirit While Still in the Flesh: By the Power of God’s Grace
One of the greatest tensions in the Christian life is this: we are sealed with the Holy Spirit, yet we still live in weak, failing flesh. The apostle Paul spoke openly of this struggle, confessing, “I do not do what I want, but I do the very thing I hate” (Romans 7:15). How can a believer live in victory when the battle between flesh and Spirit never seems to end? The Bible gives us both clarity and hope.
The Reality of the Conflict
When a person believes in Christ, they are justified—declared righteous before God—and indwelt by the Spirit (Ephesians 1:13–14). Yet, until glorification, we remain in unredeemed bodies. Paul explains: “The desires of the flesh are against the Spirit, and the desires of the Spirit are against the flesh… to keep you from doing the things you want to do” (Galatians 5:17).
This means believers experience both:
- A new nature in Christ, empowered by the Spirit.
- The lingering pull of sinful flesh.
Jesus Himself acknowledged this tension when He told His disciples, “The spirit indeed is willing, but the flesh is weak” (Matthew 26:41).
Grace in the Struggle
The presence of this struggle does not mean the Spirit has failed. Instead, it proves that God’s grace is actively at work. Grace does not only save us from sin’s penalty; it also trains us to renounce ungodliness and live godly lives (Titus 2:11–12).
Paul captures the paradox beautifully:
- “Work out your salvation with fear and trembling, for it is God who works in you, both to will and to work for his good pleasure” (Philippians 2:12–13).
The Greek term katergazomai (“work out”) means to bring something to completion or full expression. We are not told to work for salvation—that was accomplished at the cross—but to work out the salvation already given, depending entirely on God’s indwelling power.
In other words: we work it out because God is working it in.
Living in the Spirit, Not in the Flesh
Paul distinguishes between being “in the flesh” and “walking according to the flesh.” Those who are in Christ are no longer “in the flesh” positionally (Romans 8:9). But we can still choose to walk according to the flesh when we yield to sinful desires.
The call of Scripture is clear:
- “Walk by the Spirit, and you will not gratify the desires of the flesh” (Galatians 5:16).
- “Do not grieve the Holy Spirit of God, by whom you were sealed” (Ephesians 4:30).
- “If we live by the Spirit, let us also keep in step with the Spirit” (Galatians 5:25).
The Role of Discipline and Repentance
The seven churches in Revelation (Rev 2–3) remind us that even Spirit-indwelt communities can drift. Some were commended for faithfulness, others rebuked for compromise, lovelessness, or lukewarmness. Christ did not dismiss them as “false churches” but called them to repent, promising reward “to the one who conquers.”
This shows that grace is not permission to sin but power to overcome. The warnings are part of Christ’s loving discipline: “Those whom I love, I reprove and discipline, so be zealous and repent” (Revelation 3:19).
The Stages of Salvation
Understanding the “already–not yet” nature of salvation helps us reconcile the struggle:
- Justification (Past): We have been saved from sin’s penalty (Romans 5:1).
- Sanctification (Present): We are being saved from sin’s power (1 Corinthians 1:18).
- Glorification (Future): We will be saved from sin’s presence (Romans 8:23).
Right now, we live in the second stage—where the Spirit leads us, empowers us, convicts us, and picks us up when we fall.
Hope in Christ
The battle between flesh and Spirit is real, but it is not hopeless.
- Christ intercedes for us (Romans 8:34).
- The Spirit groans within us (Romans 8:26).
- God promises to finish what He started (Philippians 1:6).
Paul’s cry in Romans 7—“Who will deliver me from this body of death?”—is answered with joy: “Thanks be to God through Jesus Christ our Lord!”
Conclusion
Living in the Spirit while still in the flesh means living daily in dependence on the grace of God. We stumble, but we are not abandoned. We battle, but the Spirit empowers. We work out our salvation, not to earn it, but because God is already at work within us.
Until the day of glorification, when the presence of sin is finally gone, our hope is not in our ability but in God’s promise:
“My grace is sufficient for you, for my power is made perfect in weakness” (2 Corinthians 12:9).

