2512. katharismos
Lexical Summary
katharismos: Cleansing, purification

Original Word: καθαρισμός
Part of Speech: Noun, Masculine
Transliteration: katharismos
Pronunciation: kath-ar-is-MOS
Phonetic Spelling: (kath-ar-is-mos')
KJV: cleansing, + purge, purification(-fying)
NASB: purification, cleansing
Word Origin: [from G2511 (καθαρίζω - cleansed)]

1. a washing off
2. (ceremonially) ablution, (morally) expiation

Strong's Exhaustive Concordance
cleansing, purification

From katharizo; a washing off, i.e. (ceremonially) ablution, (morally) expiation -- cleansing, + purge, purification(-fying).

see GREEK katharizo

HELPS Word-studies

Cognate: 2512 katharismós (a masculine noun derived from 2511 /katharízō, "to purge") – purification, which results from God removing undesirable admixtures (eliminating impurities).

NAS Exhaustive Concordance
Word Origin
from katharizó
Definition
a cleansing
NASB Translation
cleansing (2), purification (5).

Thayer's Greek Lexicon
STRONGS NT 2512: καθαρισμός

καθαρισμός, καθαρισμοῦ, (καθαρίζω), a cleansing, purification; a ritual purgation or washing (Vulg.purgatio, pnrifcatio, emundatio): used with a genitive of the subjunctive, τῶν Ἰουδαίων, of the washings of the Jews before and after their meals, John 2:6; without a genitive, of baptism (a symbol of moral cleansing), John 3:25; with a genitive of the object, and that a person — of the levitical purification of women after childbirth, Luke 2:22; and of lepers, Mark 1:44; Luke 5:14; with a genitive of the thing, ἁμαρτιῶν or ἁμαρτημάτων, a cleansing from the guilt of sins (see καθαρίζω, 1 b. β.): wrought now by baptism, 2 Peter 1:9, now by the expiatory sacrifice of Christ, Hebrews 1:3 on which cf. Kurtz, Commentary, p. 70; (Exodus 30:10; τῆς ἁμαρτίας μου, Job 7:21; of an atonement, Lucian, asin. 22).

Topical Lexicon
Overview

The Greek noun translated “purification” or “cleansing” appears seven times in the New Testament. In every setting it points to the removal of defilement—whether ceremonial, physical, moral, or spiritual—under God’s covenantal standards. The word bridges the Old Testament ritual washings and sacrifices with the New Testament revelation of Christ’s once-for-all atonement and the believer’s ongoing sanctification.

Old Testament Background

Under the Law, purification rites guarded Israel’s fellowship with a holy God. Water was applied after contact with death, childbirth, or disease (Leviticus 12; Numbers 19), and sacrificial blood or birds were prescribed for lepers (Leviticus 14). These rites never removed sin in themselves; they pointed forward to a greater cleansing (Hebrews 10:1–4).

Ceremonial Purifications in Jewish Life

1. Household vessels for washings – John 2:6 describes “six stone water jars … for the Jewish ceremonial washing, each holding twenty to thirty gallons.” Such jars were common around first-century synagogues and homes, providing adequate water for multiple ritual immersions (mikvaʾot).
2. Leprous cleansing – Mark 1:44 and Luke 5:14 record Jesus commanding healed lepers to “offer the offering that Moses commanded for your cleansing.” By restoring lepers to the congregation, Jesus honored the Law while displaying messianic power to heal both body and soul.
3. Childbirth purification – Luke 2:22 notes the obedience of Joseph and Mary: “when the time of their purification according to the Law of Moses was complete, they brought Him to Jerusalem.” The perfect Child underwent a rite designed for sinners, foreshadowing His identification with humanity.
4. Debates over ritual washing – John 3:25 recounts a dispute between John’s disciples and a Jew “over the issue of ceremonial washing.” The discussion highlighted transition: John’s baptism of repentance anticipated a deeper cleansing soon to be inaugurated by Christ.

Christ’s Definitive Purification

Hebrews 1:3 declares, “After He had provided purification for sins, He sat down at the right hand of the Majesty on high.” The writer contrasts repeated temple rituals with the Son’s single, sufficient act. His seated posture signals completed work; no further sacrifice is required. All earlier cleansings find fulfillment in the cross, where blood and water flowed together (John 19:34).

Purification and Christian Growth

2 Peter 1:9 warns believers who neglect virtue that they are “nearsighted … having forgotten that he has been cleansed from his past sins.” The verse assumes an initial, objective purification accomplished by Christ, yet reminds readers that practical holiness must follow. Assurance flourishes where growth and gratitude accompany remembered cleansing.

Historical and Cultural Insights

• Stone reservoirs resisted ritual impurity better than clay, explaining their prevalence in John 2.
• Priests in the Second Temple period verified healings, issuing certificates of purity; Jesus’ instructions preserved ecclesiastical order while silencing premature publicity.
• By the first century, Pharisaic tradition extended washings from priests to the populace, increasing daily contact with the concept of purification and preparing minds for a Messiah who would cleanse hearts.

Theological Significance

1. Typology: Every Old Covenant washing functions as a shadow of Christ’s atonement.
2. Propitiation and expiation: The word embraces both the removal of guilt before God and the cleansing of moral stain within the believer.
3. Eschatology: Revelation closes with a bride “prepared” and made clean (Revelation 19:7-8), echoing the same theme. Salvation history moves from ritual baths to rivers of living water.

Implications for Ministry and Discipleship

• Preaching must lift eyes from external observances to the finished purification accomplished by the Lamb of God.
• Pastoral care applies cleansing promises to contrite hearts (1 John 1:9) and exhorts growth in the virtues listed in 2 Peter 1:5-7.
• Baptism, though symbolic, powerfully testifies that “He saved us through the washing of rebirth” (Titus 3:5), uniting believers with the complete purification won at Calvary.

Forms and Transliterations
καθαρισμον καθαρισμόν καθαρισμὸν καθαρισμου καθαρισμού καθαρισμοῦ καθαρισμώ katharismon katharismòn katharismou katharismoû
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Englishman's Concordance
Mark 1:44 N-GMS
GRK: περὶ τοῦ καθαρισμοῦ σου ἃ
NAS: and offer for your cleansing what
KJV: thy cleansing those things
INT: for the cleansing of you what

Luke 2:22 N-GMS
GRK: ἡμέραι τοῦ καθαρισμοῦ αὐτῶν κατὰ
NAS: the days for their purification according
KJV: of her purification according
INT: days of the purification of them according to

Luke 5:14 N-GMS
GRK: περὶ τοῦ καθαρισμοῦ σου καθὼς
NAS: and make an offering for your cleansing, just
KJV: for thy cleansing, according as Moses
INT: for the cleansing of you as

John 2:6 N-AMS
GRK: κατὰ τὸν καθαρισμὸν τῶν Ἰουδαίων
NAS: for the Jewish custom of purification, containing
KJV: after the manner of the purifying of the Jews,
INT: acccording to to the purification of the Jews

John 3:25 N-GMS
GRK: Ἰουδαίου περὶ καθαρισμοῦ
NAS: with a Jew about purification.
KJV: and the Jews about purifying.
INT: [some] Jews about purification

Hebrews 1:3 N-AMS
GRK: δυνάμεως αὐτοῦ καθαρισμὸν τῶν ἁμαρτιῶν
NAS: When He had made purification of sins,
INT: power of him [the] purification of sins

2 Peter 1:9 N-GMS
GRK: λαβὼν τοῦ καθαρισμοῦ τῶν πάλαι
NAS: having forgotten [his] purification from his former
KJV: and hath forgotten that he was purged from his
INT: having reveived the purification the of old

Strong's Greek 2512
7 Occurrences


καθαρισμὸν — 2 Occ.
καθαρισμοῦ — 5 Occ.

2511
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