The Invisible War – The Battle Within Me
Pastor Tan Thai · Apr 19, 2015
This sermon explores the spiritual battle that takes place within every believer, based on Romans 7:15-25 and Ephesians 6:11-12. Paul describes the conflict between the old self and the new self, between the law of God and the law of sin. The solution does not come from willpower or personal effort, but from surrendering full lordship of one's life to Jesus Christ.
The sermon opens by introducing three enemies in the spiritual war: the world, Satan, and oneself. The pastor emphasizes that the most dangerous and most immediate enemy is the person within each of us—the sinful self we carry wherever we go. Drawing from Ephesians 6:11-12, the sermon establishes that this is not a battle against flesh and blood, but against invisible powers in the spiritual realm.
The heart of the sermon analyzes Romans 7:15-25, painting a portrait of a believer struggling with himself. Paul honestly admits his inner conflict: he wants to do good but does evil, hates sin yet continues to sin. The sermon identifies five specific consequences when a believer tries to win this battle in their own strength: confusion with no way out, guilt and shame, addictive habits that cannot be broken, discouragement and frustration, and ultimately despair and giving up.
The sermon explains the cause by noting that when a person believes in Christ, they live with two forces: the old self and the new self. The old self does not disappear at the moment of regeneration but remains until death. The ancient image of a corpse tied to a murderer is used to illustrate the burden of sin that Paul laments in verse 24, which is why no one can do enough good works on their own to reach heaven.
The solution proposed in the sermon is not more knowledge or greater effort, but surrendering full lordship to Jesus Christ. The pastor warns against the common mistake of treating Christ like a genie—calling on Him only in times of need rather than allowing Him to be Lord of everything. The sermon calls each person to open the hidden closets and secret corners of their heart so the Holy Spirit can clean and renew them.
The sermon concludes with a practical call to action: allow the Holy Spirit to work in one's life instead of relying on personal willpower. Paul's exclamation, "Thanks be to God—through Jesus Christ our Lord!" is highlighted as the definitive answer to the question "Who will rescue me?"—not something, but someone, Jesus Christ Himself.