What does the Bible say about the struggle between flesh and spirit?

In Romans 7, the Apostle Paul vividly depicts the internal struggle within every believer—a conflict between the flesh and the Spirit. He acknowledges that while the mind serves the law of God, the flesh serves the law of sin. This duality results in an ongoing tension for the child of grace, who is aware of their innate sinful nature yet aspires to live righteously through the Spirit. This state of consternation is a pivotal part of the believer's experience until the body is redeemed and clothed with immortality. As Paul emphasizes, while the flesh remains corrupt and cannot please God, the inward man, born of the Spirit, delights in the law of God, illustrating the reality of living with 'two men' within one person.