How does being in Christ change a believer's life?

When a person is in Christ, their entire existence undergoes a radical transformation. As stated in 2 Corinthians 5:17, "Therefore, if anyone is in Christ, he is a new creation; the old has passed away; behold, the new has come." This change encompasses not just a new identity but also a new way of thinking and perceiving one’s life and actions. The believer is empowered by the Holy Spirit to grow in holiness and grace, enabling a life that bears fruit in good works. The struggle with sin continues, but the believer now possesses a new perspective, recognizing their old ways as fallen and actively seeking to live according to the will of God. This life change is evidence of the work of God within, highlighting the importance of ongoing spiritual growth and reliance on Christ.