The Surrender Series

Part 3: Sin — The Battle Between Flesh and Spirit

Sin.

One word that sums up the cause of all our struggles. It is the bane of human existence—the ultimate barrier between us and God. Sin explains why we no longer live in Eden, why we don’t walk face-to-face with God, and why the Son of God, pure and blameless, endured the cruelty of the cross.

There is nothing good about sin. Yet it’s the one thing our flesh constantly craves. That urge always comes knocking at the door, no matter how many times we resist. It’s the never-ending battle between flesh and Spirit—a war every Christian knows too well.

The hard truth? Sometimes we even enjoy our sins. We enjoy the rush of lust, the thrill of stealing, the relief of lying our way out of trouble, the gossip that feels “fun.” But here’s the problem—your sins don’t love you back. They use you, discard you, and leave you broken with guilt and shame. Every time I fell into porn, the cycle was the same: the thirst, then the crushing guilt. Deep down, I always knew it was wrong. That inner conviction was God whispering, reminding me He never leaves nor forsakes us.

The effects of sin are everywhere. Broken families. Failed relationships. A heart that feels far from God. Trace the root—it’s always sin.

So today, let’s face it head on. What does the Bible actually say about sin? How do we recognize it, and how do we fight it? Surrender Series, Part 3.

Sin is sneaky. You’d never label yourself “an adulterer,” yet you secretly lust or watch porn. You’d never call yourself “a thief,” yet you take things without asking. You’d never claim to be “a liar,” yet you twist the truth to your own advantage. That’s the camouflage of sin.

The Bible doesn’t sugarcoat it:

Galatians 5:19–21 (KJV)

“Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness… they which do such things shall not inherit the kingdom of God.”

Scary list, right? Yet it’s closer to home than we think.

The flesh is the Christian’s greatest opposition. The devil is our enemy, yes—but he works through the desires of our flesh. And the flesh is always hungry. Feed it once, and instead of being satisfied, it just demands more. Slip once, and it drags you deeper.

The Bible is clear:

Romans 7:18 (KJV):

“For I know that in me (that is, in my flesh,) dwelleth no good thing…”

There’s no good in the flesh. None. That’s why Jesus didn’t say “manage” your sin—He said cut it off.

Matthew 5:29–30 (KJV):

“If thy right eye offend thee, pluck it out… If thy right hand offend thee, cut it off…”

Drastic? Yes. But Jesus wanted us to grasp the seriousness of sin. Cut it off. Delete that app. End that relationship. Unfollow that influencer. Don’t negotiate with sin—it stains like dirt and clings like poison.

So, where does sin come from?

James 1:14–15 (KJV):

“Every man is tempted, when he is drawn away of his own lust, and enticed. Then when lust hath conceived, it bringeth forth sin: and sin, when it is finished, bringeth forth death.”

The root is our desires. It’s not wrong to want, but when those desires control us, they birth sin. That’s why Paul said:

1 Corinthians 9:27 (KJV):

“But I keep under my body, and bring it into subjection…”

The flesh must be disciplined. How? Through prayer, fasting, and the Word.

Matthew 26:41 (KJV):

“Watch and pray, that ye enter not into temptation: the spirit indeed is willing, but the flesh is weak.”

Prayer keeps us alert, fasting humbles the flesh, and Bible study arms us with God’s truth. And never underestimate the power of community. Surround yourself with believers who sharpen you, challenge you, and pull you closer to Christ.

Because sin thrives in isolation, but dies in accountability.

This battle is not easy. I stumble, you stumble, we all stumble. But God calls us to confess and forsake sin—not return to it like a dog to its vomit. The Christian life is not about perfection, it’s about daily surrender. Progress, then perfection.

Sin is real, deadly, and relentless. The alternative to surrender is death and eternal separation. The alternative to sin is life in Christ.

May the Lord guide us in this battle. May He strengthen our weak flesh and make our spirits strong. And may we one day hear Him say: “Well done, good and faithful servant.”


Hey family 🙏. I pray this word touched you. If it did, I’d love for you to join my Christian channel on WhatsApp, where we’ll share:

Here’s the link: https://whatsapp.com/channel/0029Vb6SurW5a24CXdMv3n2T

I’m also praying about moving to a personal website soon—please join me in prayer for direction.

This is the end of the Surrender Series 🥲. It’s blessed me deeply, and I hope it has blessed you, too. Let’s keep running the race together. The goal, “O good and faithful servant…” 🙏

By God’s grace 🙏.

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