What does it mean that believers are new creations in Christ?

When Scripture states that believers are new creations in Christ (2 Corinthians 5:17), it underscores a radical transformation. This signifies that their past identity, marred by sin, is replaced by a new identity in Christ, characterized by righteousness and sanctification. The 'new creation' implies that believers are endowed with a new nature that desires to follow God's commands and reflects His holiness. Sin's dominion over them is broken, empowering them to live in accordance with God's will. Importantly, this transformation speaks to the liberating grace of God, illustrating that inherent change is not due to human effort but to the powerful working of God's Spirit within the believer.