To purify
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ἁγνίζω is the verb of purification — it names the act rather than the state. Where ἁγνός (G53) describes the quality of purity and ἁγνεία (G47) names purity as a condition, ἁγνίζω describes the movement from defilement toward cleanness: to purify, to make holy, to cleanse.
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Full entry for ἁγνίζω (G48) · Open the biblical lexicon
ἁγνίζω is the verb of purification — it names the act rather than the state. Where ἁγνός (G53) describes the quality of purity and ἁγνεία (G47) names purity as a condition, ἁγνίζω describes the movement from defilement toward cleanness: to purify, to make holy, to cleanse.
The BSB source-word alignment has 7 aligned rows for this entry. Common renderings include purify (2), [and] purified himself (1), [Since] you have purified (1), I was ceremonially clean (1), purifies (1).
The source-word alignment first shows this entry at John 11:55. Its strongest book concentrations include Acts (3), 1 John (1), 1 Peter (1), James (1).
ἁγνίζω is the verb of purification — it names the act rather than the state. Where ἁγνός (G53) describes the quality of purity and ἁγνεία (G47) names purity as a condition, ἁγνίζω describes the movement from defilement toward cleanness: to purify, to make holy, to cleanse. Abbott-Smith identifies two distinct domains of use: ceremonial and moral. In the ceremonial sense, it describes ritual purification rites required before festivals or temple access (John 11:55, Acts 21:24, 26, 24:18).
In the moral sense, it describes the interior cleansing of the heart and soul that belongs to genuine repentance and devotion to God (Jas 4:8, 1 Pet 1:22, 1 John 3:3). This dual range is not a confusion — it reflects the biblical conviction that the external and the internal were not fully separate. The OT background is priestly: ἁγνίζω frequently translates קָדַשׁ (to sanctify, set apart) and related purification terms from the Levitical system.
The NT inherits that priestly frame but interiorizes its concern. The act of purifying oneself is no longer primarily a preparation for temple approach — it is a preparation for encounter with God in prayer, in community, and ultimately in the eschatological presence. James's 'purify your hearts' is directed at people with divided loyalty. Peter's 'purified your souls in obeying the truth' locates purification in the response to the gospel itself.
John's 'everyone who has this hope purifies himself' places the act in the eschatological frame: we cleanse ourselves in the direction of what Christ will complete. The preacher who handles ἁγνίζω is handling the verb of sanctification — not the abstract doctrine, but the active, ongoing, intentional movement of the believing life toward holiness.
ἁγνίζω appears 7 times in the NT and covers both ritual and moral purification. The ceremonial uses (John 11:55; Acts 21:24, 26; 24:18) show the word's OT priestly background operating in a Jewish context. The moral uses (Jas 4:8; 1 Pet 1:22; 1 John 3:3) show the NT interiorization of the purification concept — now applied to the heart, the soul, and eschatological preparation.
Draw near to God, and He will draw near to you. Cleanse your hands, you sinners, and purify your hearts, you double-minded.
James uses ἁγνίσατε (aorist imperative of ἁγνίζω) for purifying the heart alongside the parallel command to cleanse the hands. The two imperatives — cleanse/purify — address two distinct registers: the hands symbolize actions, the heart symbolizes divided loyalty. The double-minded person (δίψυχος) is one whose interior commitment is split between God and the world.
Purification here is the remedy for that division — not ritual performance but a decisive interior reorientation toward God. This is the most direct command in the NT to purify oneself, and James places it inside the logic of drawing near to God: approach requires preparation.
Since you have purified your souls by obedience to the truth so that you have a genuine love for your brothers, love one another deeply, from a pure heart.
Peter uses the perfect participle ἡγνικότες — 'having purified' — treating the purification of the soul as an accomplished action that grounds the present command to love. The means of purification is 'obedience to the truth through the Spirit': it is not ritual or self-effort but gospel reception producing Spirit-worked transformation. The result of that purification is not a private state of cleanness but a communal capacity for sincere love.
ἁγνίζω here is the backstory of Christian community — the purification that makes genuine love of the brothers possible.
And everyone who has this hope in Him purifies himself, just as Christ is pure.
John uses ἁγνίζει (present tense, ongoing action) — 'purifies himself, even as he is pure.' The eschatological hope of seeing Christ as he is generates a present, active, continuous process of self-purification. The standard is Christological: 'as he is pure' (ἁγνός, G53). This verse shows that ἁγνίζω is not a one-time act but an orientation of the believing life — a direction of travel toward the purity that belongs to Christ by nature.
The connection between the noun ἁγνός and the verb ἁγνίζω here binds the state and the action together: we move toward what Christ already is.
Take these men, purify yourself along with them, and pay their expenses so they can have their heads shaved. Then everyone will know that there is no truth to these rumors about you, but that you also live in obedience to the law.
Paul's participation in the Nazirite purification rites (ἁγνίσθητι) demonstrates ἁγνίζω in its original ceremonial context. Paul does not regard this participation as inconsistent with his theology of grace — he does it to remove a stumbling block. This ceremonial use shows that the word carried a live connection to the Levitical purification system into the NT period, and that the NT did not simply abolish that vocabulary but placed it within the larger framework of the Spirit's work.
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How English Renders ItA compact distribution from source-word alignment before the full evidence tables.
Greek word. to purify
Textus Receptus witness, full corpus Greek token appearances from Scrivener 1894 Textus Receptus in the full New Testament corpus.
7 Greek text appearances shown. Linked morphology labels have verse guides.
I cleanse, purify
Read verseI cleanse, purify
Read verseI cleanse, purify
Read verseI cleanse, purify
Read verseI cleanse, purify
Read verseI cleanse, purify
Read verseI cleanse, purify
Read verseFull New Testament corpus: 260 chapters, 7,957 verses, 140,628 tokens. Data source: honza/textus-receptus (data only), with authority check against byztxt/greektext-textus-receptus.
How mood, tense, and voice shift the force of this verb in context.
This verb appears through different tense, voice, mood, or stem patterns. Those forms help readers see how the action is presented in context.
Verse guides are not available for this word yet, so verse references remain plain evidence markers.
How this verb appears across 7 occurrences in the NT discourse index (MACULA Greek SBLGNT).
Aspect reflects grammatical form — not authorial emphasis. Participles and infinitives are verbal adjectives and nouns respectively.
Clause data: MACULA Greek (Clear Bible, CC BY 4.0) · SBLGNT (Logos/SBL, CC BY 4.0)
Selected passage-level study witnesses for this word. This section is not the full occurrence list.
Showing 1 selected witness from 7 lexical occurrence verses.
ἁγνίζω is built from this root:
Shows cultural sensitivity without altering gospel doctrine. Acts 21:15-26
ἁγνίζω is the word for the movement rather than the destination — it is the verb of the journey toward purity rather than the noun of the state achieved. James gives it as a command to the double-minded: the divided heart can be purified, but that purification requires an intentional decisive movement back toward God. Peter gives it as the backstory of love: the community that loves sincerely is the community whose souls have been purified through gospel obedience.
John gives it as the present continuous activity of the person who has eschatological hope: they are constantly moving in the direction of Christ's own purity. The preacher who works through these three uses has a word that covers the whole arc of the sanctified life: the beginning (the turn toward God), the community it produces (sincere love), and the horizon that sustains it (the hope of seeing Christ).
The ceremonial background in Acts adds the important note that ἁγνίζω carried a priestly resonance — the NT believer is a priest-people (1 Pet 2:9) engaged in a continuous act of self-offering and preparation that mirrors what the Levitical system required before approach. That continuity between priesthood and purity is not abolished but interiorized and communalized: we purify ourselves not for entry into a temple but for life in the people of God who are themselves the temple of the Spirit.
Jas.4.8
ἁγνίζω is the denominative verb from ἁγνός (pure), itself derived from ἅγος (the sacred, the inviolable). The suffix -ίζω forms causative verbs in Greek: ἁγνίζω means not merely 'to be pure' but 'to make pure, to cause to be in a state of purity.' Abbott-Smith notes that in the LXX it most frequently translates קָדַשׁ (to sanctify, set apart), which established its priestly register.
The NT uses divide cleanly between Acts (ceremonial, pre-festival purification) and the Epistles (moral, interior purification). This division is not a contradiction but a development — the same act of preparation for divine encounter now applies to the whole of the believer's life rather than to specific ritual moments.
The OT background of ἁγνίζω runs through the Levitical purification system — the קָדַשׁ root (to sanctify, set apart) and its associated ritual acts that prepared Israel for covenant encounter. Numbers 8:21 describes the Levites purifying (ἡγνίσαντο in the LXX) themselves for service. The pattern is consistent: before approach to the holy, preparation is required.
The NT does not abolish this pattern but fulfills and extends it. Jesus himself uses the purification vocabulary in John's Gospel in the context of Passover preparation (John 11:55). The Epistles then take this ceremonial act and apply it to the interior life of every believer: 'purify your hearts' (Jas 4:8), 'purified your souls' (1 Pet 1:22), 'purifies himself' (1 John 3:3).
The priestly preparation for festival has become the ongoing discipline of the whole people of God who live as priests before God in the power of the Spirit. The sin offering (H2403 חַטָּאָה) that the OT required as the external mechanism of purification finds its fulfillment in Christ — and the believer's response is the active pursuit of purification that flows from that completed offering.
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