What does sanctification involve according to Christian doctrine?

Sanctification, according to Christian doctrine, is fundamentally understood as the process of becoming more like Christ. This concept emphasizes the transformative work of the Holy Spirit in the life of a believer after their initial conversion experience. It is a journey of spiritual growth characterized by increased faith, obedience, and moral development, which aligns an individual more closely with the character and teachings of Jesus.

In the context of sanctification, believers are called to actively participate in their spiritual development through practices such as prayer, studying scripture, engaging in community worship, and demonstrating love and service. This process is seen as both a personal commitment and a divine empowerment, where believers are gradually equipped to reflect the nature and image of Christ in their lives.

The other options address important elements in the life of a believer, but they do not encapsulate the ongoing and progressive nature of sanctification. Initial belief in Christ is the starting point of a Christian's faith journey, while final salvation refers to the ultimate fulfillment of a believer's hope in eternal life with God. Being chosen by God denotes the doctrine of election, which emphasizes God's sovereign choice in salvation but is separate from the ongoing work of transformation in the believer's life known as sanctification.