The Greek word hagiázō, represented by G37, means to make holy, purify, or consecrate. It appears 29 times across 26 unique verses in the Bible. Derived from the word for holy, ἅγιος, its usage extends from ceremonial purification to the mental act of venerating or hallowing something as sacred.
Beyond the immediate sense of making holy, G37 carries an inherent emphasis on dedication and purposeful separation. It is an active verb, denoting a deliberate act of God or man to set something or someone apart from the common or profane realm and consecrate it for sacred use or divine service. This active dedication implies a change in status and function, rather than merely a cleansing of impurity, though purification is often a necessary prerequisite. The word thus highlights the divine prerogative and human responsibility in establishing a distinct relationship with God, where the object or person is now defined by its belonging to Him.
In scripture, G37 is used to describe the process of being set apart for a divine purpose. It is a central element of prayer, as seen in the plea, "Hallowed be thy name" (Matthew 6:9, Luke 11:2). The word is directly linked to the work of Jesus Christ, who sanctifies His people through the "offering of the body" Hebrews 10:10 and with His own "blood" Hebrews 13:12. The truth of God's word is also an agent of this process, as Jesus prayed, "Sanctify them through thy truth" John 17:17. For believers, being sanctified is a foundational aspect of their identity in Christ, alongside being washed and justified 1 Corinthians 6:11.
The application of G37 extends beyond individuals to encompass various aspects of life and worship, illustrating the broad scope of divine consecration. It describes the ceremonial setting apart of objects for sacred use, as when the temple is said to "sanctify the gold" or the altar "sanctifies the gift" Matthew 23:17, Matthew 23:19. This reflects Old Testament principles where items dedicated to God's service acquired a holy status. Furthermore, G37 uniquely addresses the relational aspect within a believing household, stating that an unbelieving spouse is "sanctified by the wife" or husband 1 Corinthians 7:14, implying a form of positional holiness within the family unit due to the presence of a believer. Even common elements like food are "sanctified by the word of God and prayer" 1 Timothy 4:5, indicating that God's truth can set apart and make acceptable things for His people's use.
Several related words illuminate the concept of holiness and purification:
- G40 hágios (holy, saint): As the root of hagiázō, this word describes the state of being sacred or consecrated. The two are linked in the call for one who is holy G40 to be holy G37 still Revelation 22:11.
- G225 alḗtheia (truth): This term is identified as a primary means of sanctification. Jesus states that God's word is truth, and it is through this truth that believers are sanctified John 17:17.
- G129 haîma (blood): The blood of Jesus is presented as the price and means of sanctification. Jesus suffered to sanctify the people with His own blood Hebrews 13:12, and the blood of the covenant is that by which a person was sanctified Hebrews 10:29.
- G2511 katharízō (to cleanse): Often used alongside hagiázō, this word emphasizes the purifying aspect of being made holy. Christ's purpose for the church is that He might sanctify and cleanse it Ephesians 5:26.
- G38 hagiasmós (sanctification, holiness): This noun is directly derived from G37 and refers to the process or state of being sanctified. It encapsulates the outcome and ongoing work described by the verb.
The theological weight of G37 is centered on the divine act of setting believers apart for God.
- A Divine Act: Sanctification originates with God. Believers are described as those "sanctified by God the Father" Jude 1:1 and Christ is the one "whom the Father hath sanctified" John 10:36. This act qualifies them for an inheritance Acts 20:32.
- Accomplished through Christ's Offering: The basis for a believer's sanctification is the singular work of Christ. It is "through the offering of the body of Jesus Christ once for all" that believers are sanctified Hebrews 10:10. This one offering has "perfected for ever them that are sanctified" Hebrews 10:14.
- Mediated by the Word and Spirit: The application of holiness occurs through specific means. God's word is the instrument of truth that sanctifies John 17:17, a process described as a "washing of water by the word" Ephesians 5:26. The offering of the Gentiles is made acceptable by "being sanctified by the Holy Ghost" Romans 15:16.
- A Call to Consecration: While a divine act, sanctification also involves a human response. Believers are commanded to "sanctify the Lord God" in their hearts 1 Peter 3:15 and to purge themselves to become a "vessel unto honour, sanctified" and prepared for good works 2 Timothy 2:21.
- Christ's Self-Consecration: A profound theological dimension of G37 is found in Jesus' own statement, "for their sakes I sanctify myself, that they also might be sanctified through the truth" John 17:19. This reveals Christ's voluntary act of setting Himself apart, not from sin as He was sinless, but for His redemptive mission and priestly office. His self-consecration is the foundational act that enables and guarantees the sanctification of His followers, establishing a direct connection between His dedication and theirs.
The term G37 (hagiázō) fundamentally conveys the concept of making holy, purifying, or consecrating, marking something or someone as set apart for God's divine purposes. Rooted in the idea of inherent holiness, this verb actively denotes a deliberate act of dedication that transforms status and function. While it encompasses ceremonial purification, its New Testament usage primarily points to a spiritual transformation, distinguishing individuals and even objects as belonging to God.
This sanctification is multifaceted, encompassing both a definitive, positional act by God and an ongoing, progressive experience in the believer's life. It is initiated by God the Father, secured through the singular offering and blood of Jesus Christ, and applied by the Holy Spirit through the truth of God's word. This divine work establishes believers as "sanctified in Christ Jesus" 1 Corinthians 1:2, granting them an inheritance and preparing them for good works.
G37 highlights the broad scope of God's consecration, extending from the symbolic holiness of the temple and its offerings to the relational holiness within a Christian household and the acceptable use of daily provisions. Crucially, it also reveals Christ's own unique act of self-consecration, setting Himself apart for the redemptive mission that enables His followers' sanctification. Thus, G37 underscores a foundational truth: believers are called to reflect their consecrated status by living lives of ongoing holiness, actively responding to the divine act that has eternally set them apart for God.
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