Christians often experience an internal tug-of-war between their desire to follow Christ and the pull of sin. In Romans 7, Paul candidly describes this struggle, confessing that he doesn't understand why he does what he hates instead of what he wants to do. This isn't a contradiction of his teaching about freedom from sin, but rather an honest acknowledgment of the ongoing process of sanctification that all believer experience. Paul distinguishes between his new identity in Christ and the ongoing presence of sin in his flesh, comparing it to having a heart transplant where the body must relearn to function with the new heart. The Christian life isn't about behavior modification through trying harder, but spiritual transformation through trusting deeper. This internal war is between our inner being that delights in God's truth and our flesh with its old habits and sinful desires. While justification (being declared righteous) is complete, sanctification (becoming more like Christ) is an ongoing process. The answer to this conflict isn't found in more rules or willpower, but in Jesus Christ who delivers us. Grace doesn't eliminate the struggle, but it means we're no longer fighting alone or defined by our failures.