Why do Christians still struggle with sin if they are saved?

The struggle with sin continues because believers live in the tension of the 'already' and 'not yet.' While they are made new in Christ (2 Corinthians 5:17), the remnants of their sinful nature persist. Romans 7 reveals that this internal conflict is part of the Christian experience; Paul affirms that sin resides in our flesh. However, this struggle is not an indication of spiritual failure but rather a reminder of our dependence on Christ and His grace. Believers are called to yield daily to the Holy Spirit, who empowers them to resist sin. Essentially, the struggle signifies life and growth, leading to greater reliance on God's provision.