What does the Bible say about our struggle with sin in Romans 8?

In Romans 8, the Apostle Paul highlights the ongoing conflict faced by the believer, known as the 'child of grace.' This struggle is between the flesh, which is incapable of producing any righteousness, and the spirit, which is renewed and alive in Christ. Paul states that while the outward man cannot keep the law or do anything to please God, the inward man, empowered by the Spirit, longs for holiness and strives to serve God in thought and action. The believer's assurance lies not in their works, but in the finished work of Christ.