What Is Sanctification — In Biblical Context
Sanctification is the ongoing process by which God transforms believers into the likeness of Christ — set apart from sin and growing in holiness through the Spirit's power.
Sanctification is the ongoing process by which God transforms believers into the likeness of Christ — set apart from sin and growing in holiness through the Spirit's power.
"We are sanctified through the offering of the body of Jesus Christ once for all." — Hebrews 10:10 (KJV)
The Biblical Context
Sanctification means 'to be set apart' or 'made holy.' It operates in three tenses. Positional sanctification is past — at salvation, believers are declared holy: 'By the which will we are sanctified through the offering of the body of Jesus Christ once for all' (Hebrews 10:10). Progressive sanctification is present — the daily process of becoming more like Christ: 'But we all, with open face beholding as in a glass the glory of the Lord, are changed into the same image from glory to glory' (2 Corinthians 3:18). Final sanctification is future — complete transformation at Christ's return: 'When he shall appear, we shall be like him' (1 John 3:2). The means include the Word ('Sanctify them through thy truth: thy word is truth,' John 17:17), the Spirit (2 Thessalonians 2:13), discipline and trials (Hebrews 12:10-11), and fellowship (Proverbs 27:17). Philippians 2:12-13 captures the divine-human cooperation: 'Work out your own salvation with fear and trembling. For it is God which worketh in you.'
Where It Sits in Scripture
Supporting Passages
"We all... are changed into the same image from glory to glory, even as by the Spirit of the Lord."
"This is the will of God, even your sanctification."
Explore this question from another angle
Related Reading
Continue your study with related content from across our library:
What Is Sanctification?
Theology & Doctrine
What Is Sanctification in the Bible?
Theology & Doctrine
Justification vs. Sanctification — What's the Difference?
Theology & Doctrine
Sanctification Bible Quiz
Set apart for holiness — the biblical doctrine of growing in Christlikeness.
Bible Verses About Sanctification
10 curated KJV verses
Sanctification (ἁγιασμός (Hagiasmos))
The process of being made holy; set apart and transformed by the Spirit
Keep Going
Continue Exploring Scripture
You've found one resource — here are more ways to go deeper into God's Word.
Today's Verse
Start each day with a hand-picked KJV verse and reflection.
Verses by Topic
Find what the Bible says about love, anxiety, strength, and 500+ more topics.
Bible Miracles
Discover the signs and wonders of God recorded in Scripture.
Angels & Spiritual Warfare
Angels, demons, and the armor of God — what the KJV really teaches about the unseen battle.
Bible Genealogies & Family Trees
Visual KJV family trees — the line of Jesus, the sons of Noah, the twelve tribes, and more.
Women of the Bible
Eve, Sarah, Ruth, Esther, Mary — the matriarchs, prophetesses, queens, and disciples of Scripture.