How does the Bible describe a new creation in Christ?

In 2 Corinthians 5:17, the Apostle Paul elucidates the concept of being a new creation in Christ, emphasizing that when someone is united with Christ, they become fundamentally transformed. This new creation indicates a spiritual rebirth, which is entirely the work of God, not a result of human effort. It represents the believer's transition from a state of sin to one of righteousness, showcasing God’s mercy and grace. Therefore, understanding oneself as a new creation encourages believers to live in the light of their new identity, bearing witness to God’s transformative power in their lives.