Which scripture discusses sanctification subsequent to the new birth?

The scripture that discusses sanctification subsequent to the new birth is found in 1 Thessalonians 5:23. This verse addresses the concept of being sanctified completely, indicating a process that occurs after an individual has experienced the new birth, or regeneration. The Apostle Paul refers to the spirit, soul, and body, emphasizing a holistic approach to sanctification, suggesting that it is not just a momentary event but a continual process of growth and holiness.

In the broader theological context, sanctification is understood as the work of the Holy Spirit in the life of the believer, helping them to live in accordance with God’s will after they have accepted Christ. This transformative process is foundational in the Christian faith, illustrating how believers are called to be set apart for God’s purpose following their conversion.

The other passages do not directly address the concept of sanctification post-new birth. John 3:16 focuses on the promise of eternal life through belief in Jesus Christ, Romans 5:1 speaks to justification by faith, and 1 Thessalonians 4:3 highlights God's will for the believers’ holiness but does not encapsulate the full idea of sanctification as comprehensively as 1 Thessalonians 5:23 does.