Why is the concept of two natures important for Christians?

In Christianity, understanding that believers possess two natures—the carnal flesh and the spiritual self—is crucial for recognizing the duality of human experience. Romans 7 elaborates on this struggle, where Paul describes his internal conflict between his desire to honor God and his propensity to sin. This teaching is vital for Christians as it addresses the reality of sin in our lives while also affirming the victory we have in Christ. Recognizing this dynamic encourages believers to rely on the Holy Spirit for strength in their walk of faith and to understand that their identity is rooted in Christ's righteousness, not their performance.