ἁγιάζω

I make holy, sanctify

Definition

The verb ἁγιάζω means to make holy, sanctify, or set apart. It primarily denotes the act of consecrating something or someone for God's use and purpose, thereby separating it from the common or profane. In the New Testament, this sanctification can be an act of God (John 17:17, 19; 1 Thessalonians 5:23), an act of believers dedicating themselves to God (1 Peter 3:15), or the ceremonial purification of objects (Matthew 23:17, 19). It also carries the sense of treating something as holy, as seen in the Lord's Prayer where God's name is to be 'hallowed' (Matthew 6:9; Luke 11:2).

Biblical Usage

ἁγιάζω is used 26 times across the Gospels, Acts, Pauline epistles, and Hebrews. Key patterns include: 1) God sanctifying believers through His truth and Spirit (John 17:17, 19; 1 Corinthians 6:11), 2) believers sanctifying themselves or being called to holiness (1 Thessalonians 4:3; 1 Peter 1:15-16), and 3) the ceremonial sanctification of objects or people (Matthew 23:17, 19; Hebrews 9:13). In Acts 20:32 and 1 Corinthians 1:2, it describes believers as 'sanctified' in Christ.

Etymology

Derived from the adjective ἅγιος (hagios, G40), meaning 'holy' or 'set apart.' The verb form ἁγιάζω essentially means 'to make ἅγιος.' It is not derived from ἀ- + 'giazō' as sometimes mistakenly thought; this is a folk etymology. The root relates to the concept of separation for divine purpose, central to both Jewish and Christian thought.

Semantic Range

This word is crucial for understanding the biblical doctrine of sanctification. It highlights that holiness is not merely an abstract quality but a dynamic process where God sets believers apart, declares them holy in Christ (positional sanctification), and works by His Spirit to make them practically holy (progressive sanctification). Understanding ἁγιάζω enriches reading by showing that sanctification is God's work in which believers actively participate, moving from being declared holy to living out that holiness.

In the Greco-Roman and Jewish world, 'holiness' fundamentally meant being set apart or dedicated to a deity. For Jews, this involved ritual purity laws and the separation of the nation, the temple, and its vessels for Yahweh's service. The New Testament uses this culturally understood concept but re-centers it on Jesus Christ and the inward transformation of believers by the Holy Spirit, rather than external ritual alone.

ἁγνίζω (hagnizō, G48) — focuses more on ceremonial purification or cleansing. ἁγιος (hagios, G40) — the adjective 'holy,' describing the state of being set apart. καθαρίζω (katharizō, G2511) — emphasizes cleansing or making pure, often physically or morally.

Word Details

Scripture References