Which term denotes the believer's future state of moral and spiritual completeness?

• A. Redemption
• B. Regeneration
• C. Adoption
• D. Sanctification

Answer: (D)

The main idea here is the believer’s final, complete state of holiness. Sanctification is the term that best fits that idea: it describes not only ongoing growth in holiness now but also the ultimate completion of that moral and spiritual transformation in the life to come. While a believer begins sanctification as the Spirit works in them, the fullest sense of sanctification is moving toward being fully holy in God's presence. The other terms refer to different aspects: redemption is the act of being bought back from sin, regeneration is being made alive spiritually at new birth, and adoption is being brought into God's family. So sanctification best captures the future completeness of a believer’s character and life.