How are believers sanctified according to the Bible?

The process of sanctification is described as complete and wholly attributed to God's work. Jude 1:1 states that believers are sanctified by God the Father, which affirms that sanctification begins with God's choice and continues through the work of the Holy Spirit. Hebrews 10:10 emphasizes that it is through the sacrifice of Christ that believers are made holy, highlighting the complete dependence on Christ’s redemptive work. This understanding radically shifts the view of sanctification from a cooperative human effort to a sovereign act of God that ultimately results in His glory.