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    Theology & Doctrine

    What Is Sanctification?

    What Is Sanctification? 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.

    Key verse: Hebrews 10:10 (KJV)

    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.

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    Quick Answer

    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 Answer

    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.'

    Topic Overview

    What Does the Bible Say About Forgiveness of Sins?

    How God forgives sin and what the Bible says about receiving complete pardon through Christ.

    Key Scripture References

    "We are sanctified through the offering of the body of Jesus Christ once for all."
    "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."

    Frequently asked questions

    Frequently asked questions

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    Deep Dive Commentary

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    Read it in context

    The answer above sits inside Hebrews. The 365-day chronological plan reads it in the order the events happened.

    Read Hebrews on day 351 of the chronological Bible reading plan

    Keep the verses to hand

    Every verse quoted in “What Is Sanctification?” comes from the King James Version, free to download and print.

    Frequently Asked Questions

    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.'

    God is holy and calls His people to be holy — set apart from sin and consecrated to His purposes.

    Grace is God's unmerited favor — the free gift of salvation and blessing that cannot be earned but is received through faith in Jesus Christ.