4202. porneia
Lexical Summary
porneia: immorality, fornication, fornications

Original Word: πορνεία
Part of Speech: Noun, Feminine
Transliteration: porneia
Pronunciation: por-NAY-ah
Phonetic Spelling: (por-ni'-ah)
KJV: fornication
NASB: immorality, fornication, fornications, immoralities, sexual immorality, unchastity
Word Origin: [from G4203 (πορνεύω - committed immorality)]

1. prostitution (including adultery, incest, and porn)
2. (by extension) unwedded stimulation or fulfillment of sexual desire
3. (figuratively) idolatry

Strong's Exhaustive Concordance
fornication.

From porneuo; harlotry (including adultery and incest); figuratively, idolatry -- fornication.

see GREEK porneuo

HELPS Word-studies

4202 porneía (the root of the English terms "pornography, pornographic"; cf. 4205 /pórnos) which is derived from pernaō, "to sell off") – properly, a selling off (surrendering) of sexual purity; promiscuity of any (every) type.

[See also the contrasting term, 3430 /moixeía ("marital unfaithfulness").]

NAS Exhaustive Concordance
Word Origin
from porneuó
Definition
fornication
NASB Translation
fornication (4), fornications (2), immoralities (1), immorality (16), sexual immorality (1), unchastity (1).

Thayer's Greek Lexicon
STRONGS NT 4202: πορνεία

πορνεία, πορνείας, (πορνεύω), the Sept. for תַּזְנוּת, זְנוּת, זְנוּנִים, fornication (Vulg.fornicatio (and (Revelation 19:2)prostitutio)); used a. properly, of illicit sexual intercourse in general (Demosthenes, 403, 27; 433, 25): Acts 15:20, 29; Acts 21:25 (that this meaning must be adopted in these passages will surprise no one who has learned from 1 Corinthians 6:12ff how leniently converts from among the heathen regarded this vice and how lightly they indulged in it; accordingly, all other interpretations of the term, such as of marriages within the prohibited degrees and the like, are to be rejected); Romans 1:29 Rec.; 1 Corinthians 5:1; 1 Corinthians 6:13, 18; 1 Corinthians 7:2; 2 Corinthians 12:21; Ephesians 5:3; Colossians 3:5; 1 Thessalonians 4:3; Revelation 9:21; it is distinguished from μοιχεία in Matthew 15:19; Mark 7:21; and Galatians 5:19 Rec.; used of adultery ((cf. Hosea 2:2 (4), etc.)), Matthew 5:32; Matthew 19:9.

b. In accordance with a form of speech common in the O. T. and among the Jews which represents the close relationship existing between Jehovah and his people under the figure of a marriage (cf. Gesenius, Thesaurus, i., p. 422{a} following), πορνεία is used metaphorically of the worship of idols: Revelation 14:8; Revelation 17:2, 4; Revelation 18:3; Revelation 19:2; ἡμεῖς ἐκ πορνείας οὐ γεγεννήμεθα (we are not of a people given to idolatry), ἕνα πατέρα ἔχομεν τόν Θεόν, John 8:41 (ἄθεος μέν ἄγονος, πολύθεος δέ ἐκ πόρνης, τυφλωττων περί τόν ἀληθῆ πατέρα καί διά τοῦτο πολλούς ἀνθ' ἑνός γονεῖς αἰνιττόμενος, Philo de mig. Abr. § 12; τέκνα πορνείας, of idolaters, Hosea 1:2; (but in John, the passage cited others understand physical descent to be spoken of (cf. Meyer))); of the defilement of idolatry, as incurred by eating the sacrifices offered to idols, Revelation 2:21.

Topical Lexicon
Definition and Scope

Porneia (Strong’s Greek 4202) denotes all forms of sexual activity outside the covenant of marriage as ordained by God between one man and one woman. Its range embraces pre-marital intercourse, prostitution, adultery, homosexual practice, incest, and any other distortion of God’s design for sexuality. Because Scripture views the body as a member of Christ (1 Corinthians 6:15-20), porneia is never treated as a private matter but as a sin against God, self, and community.

Occurrences in Scripture

The term appears twenty-five times in the Greek New Testament, clustered in four principal contexts:

1. Christ’s teaching on divorce (Matthew 5:32; 19:9)
2. Apostolic rulings for Gentile believers (Acts 15:20, 29; 21:25)
3. Pauline exhortations to church purity (1 Corinthians 5:1, 6:13-18; 7:2; 2 Corinthians 12:21; Galatians 5:19; Ephesians 5:3; Colossians 3:5; 1 Thessalonians 4:3)
4. Apocalyptic warnings against spiritual and physical immorality (Revelation 2:21; 9:21; 14:8; 17:2, 4; 18:3; 19:2)

These texts consistently portray porneia as incompatible with membership in the kingdom of God (Galatians 5:19-21; Ephesians 5:5).

Moral and Theological Significance

1. Violation of Covenant

Sexual immorality opposes the exclusive covenant relationship mirrored in marriage (Genesis 2:24). Jesus restricts legitimate divorce to the case of porneia (Matthew 19:9), underscoring its covenant-breaking gravity.

2. Defilement of the Body

“Flee from sexual immorality. Every other sin a man can commit is outside his body, but he who sins sexually sins against his own body” (1 Corinthians 6:18). The indwelling Spirit claims the believer’s body as a temple.

3. Threat to Community Holiness

In Corinth, tolerated incest (1 Corinthians 5:1) jeopardized the whole congregation. Paul’s demand for church discipline demonstrates that porneia, left unchecked, spreads “like a little leaven” (1 Corinthians 5:6).

4. Spiritual Idolatry

Revelation employs porneia metaphorically for idolatrous alliance with worldly power. “All the nations have drunk the wine of the passion of her sexual immorality” (Revelation 18:3). The imagery echoes prophetic denunciations of Israel’s unfaithfulness (Hosea 1-3; Jeremiah 3).

Relation to Old Testament Ethic

Though the Hebrew Bible lacks a single term equivalent to porneia, prohibitions against adultery, incest, bestiality, and cult prostitution (Leviticus 18; Deuteronomy 23:17-18) establish the moral baseline assumed by the New Testament. The Septuagint frequently uses the cognate verb porneuō to describe Israel’s idolatry, preparing the ground for Revelation’s symbolism.

Cultural and Historical Background

Greco-Roman society normalized extramarital sex, concubinage, and temple prostitution. Converts often emerged from this milieu (1 Corinthians 6:9-11). The Jerusalem Council’s ban on porneia (Acts 15) functioned both to distance Gentile believers from pagan temples and to protect fellowship with Jewish Christians steeped in Levitical standards.

Pastoral Warnings and Remedies

• Discipline: Unrepentant offenders may face exclusion (1 Corinthians 5:13).
• Flight: Joseph’s example (Genesis 39:12) echoes Paul’s “Flee” imperative.
• Marriage: “Because there is so much sexual immorality, each man should have his own wife” (1 Corinthians 7:2).
• Sanctification: “For this is the will of God, your sanctification: that you abstain from sexual immorality” (1 Thessalonians 4:3).
• Renewal: Former practitioners are now “washed… sanctified… justified” (1 Corinthians 6:11).

Eschatological Dimensions

Babylon the Great epitomizes end-time porneia (Revelation 17-18). Her downfall reveals God’s final vindication: “For He has judged the great prostitute who corrupted the earth with her sexual immorality” (Revelation 19:2). The fate of Babylon warns believers to separate from moral compromise and anticipates the pure union of Christ and His bride (Revelation 19:7-9).

Ministry Implications Today

1. Teaching sexual ethics that align with creation and redemption.
2. Cultivating accountability structures within congregations.
3. Offering compassionate restoration for the repentant.
4. Engaging culture with a positive vision of chastity and covenantal love.
5. Maintaining vigilance against doctrinal and moral syncretism symbolized by Revelation’s porneia.

Porneia, thus, is not merely a catalog of forbidden acts; it is a lens through which Scripture calls the people of God to covenant fidelity, bodily holiness, and unadulterated devotion to Christ.

Forms and Transliterations
πορνεια πορνεία πορνείᾳ πορνειαι πορνείαι πορνεῖαι πορνείαις πορνειαν πορνείαν πορνειας πορνείας πορνείόν porneia porneía porneiai porneíāi porneîai porneian porneían porneias porneías
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Englishman's Concordance
Matthew 5:32 N-GFS
GRK: παρεκτὸς λόγου πορνείας ποιεῖ αὐτὴν
NAS: for [the] reason of unchastity, makes
KJV: for the cause of fornication, causeth
INT: except on account of sexual immorality causes her

Matthew 15:19 N-NFP
GRK: φόνοι μοιχεῖαι πορνεῖαι κλοπαί ψευδομαρτυρίαι
NAS: adulteries, fornications, thefts,
KJV: adulteries, fornications, thefts,
INT: murders adulteries sexual immorality thefts false witnessings

Matthew 19:9 N-DFS
GRK: μὴ ἐπὶ πορνείᾳ καὶ γαμήσῃ
NAS: except for immorality, and marries
KJV: [it be] for fornication, and
INT: except for sexual immorality and shall marry

Mark 7:21 N-NFP
GRK: κακοὶ ἐκπορεύονται πορνεῖαι κλοπαί φόνοι
NAS: thoughts, fornications, thefts,
KJV: adulteries, fornications, murders,
INT: evil go forth sexual immorality thefts murders

John 8:41 N-GFS
GRK: Ἡμεῖς ἐκ πορνείας οὐ γεγεννήμεθα
NAS: to Him, We were not born of fornication; we have
KJV: born of fornication; we have one
INT: We of sexual immorality not have been born

Acts 15:20 N-GFS
GRK: καὶ τῆς πορνείας καὶ τοῦ
NAS: by idols and from fornication and from what is strangled
KJV: and [from] fornication, and
INT: and sexual immorality and that

Acts 15:29 N-GFS
GRK: πνικτῶν καὶ πορνείας ἐξ ὧν
NAS: and from things strangled and from fornication; if you keep
KJV: and from fornication: from
INT: from what is strangled and from sexual immorality from which

Acts 21:25 N-AFS
GRK: πνικτὸν καὶ πορνείαν
NAS: and from what is strangled and from fornication.
KJV: from strangled, and from fornication.
INT: what is strangled and sexual immorality

1 Corinthians 5:1 N-NFS
GRK: ἐν ὑμῖν πορνεία καὶ τοιαύτη
NAS: reported that there is immorality among
KJV: commonly [that there is] fornication among
INT: among you sexual immorality and such

1 Corinthians 5:1 N-NFS
GRK: καὶ τοιαύτη πορνεία ἥτις οὐδὲ
NAS: among you, and immorality of such a kind
KJV: and such fornication as is
INT: and such sexual immorality which not even

1 Corinthians 6:13 N-DFS
GRK: οὐ τῇ πορνείᾳ ἀλλὰ τῷ
NAS: the body is not for immorality, but for the Lord,
KJV: [is] not for fornication, but
INT: not for sexual immorality but for the

1 Corinthians 6:18 N-AFS
GRK: φεύγετε τὴν πορνείαν πᾶν ἁμάρτημα
NAS: Flee immorality. Every [other] sin
KJV: Flee fornication. Every sin
INT: Flee sexual immorality Every sin

1 Corinthians 7:2 N-AFP
GRK: δὲ τὰς πορνείας ἕκαστος τὴν
NAS: But because of immoralities, each man
KJV: Nevertheless, [to avoid] fornication, let
INT: however sexual immorality each one

2 Corinthians 12:21 N-DFS
GRK: ἀκαθαρσίᾳ καὶ πορνείᾳ καὶ ἀσελγείᾳ
NAS: of the impurity, immorality and sensuality
KJV: and fornication and
INT: uncleanness and sexual immorality and sensuality

Galatians 5:19 N-NFS
GRK: ἅτινά ἐστιν πορνεία ἀκαθαρσία ἀσέλγεια
NAS: which are: immorality, impurity,
KJV: [these]; Adultery, fornication, uncleanness,
INT: which are sexual immorality impurity sensuality

Ephesians 5:3 N-NFS
GRK: Πορνεία δὲ καὶ
NAS: But immorality or any
KJV: But fornication, and all
INT: sexual immorality hoewever and

Colossians 3:5 N-AFS
GRK: τῆς γῆς πορνείαν ἀκαθαρσίαν πάθος
NAS: body as dead to immorality, impurity,
KJV: the earth; fornication, uncleanness,
INT: the earth sexual immorality uncleanness passion

1 Thessalonians 4:3 N-GFS
GRK: ἀπὸ τῆς πορνείας
NAS: [that is], that you abstain from sexual immorality;
KJV: should abstain from fornication:
INT: from sexual immorality

Revelation 2:21 N-GFS
GRK: ἐκ τῆς πορνείας αὐτῆς
NAS: to repent of her immorality.
KJV: of her fornication; and she repented
INT: of the sexual immorality of her

Revelation 9:21 N-GFS
GRK: ἐκ τῆς πορνείας αὐτῶν οὔτε
NAS: nor of their immorality nor
KJV: of their fornication, nor of
INT: of the sexual immorality of them nor

Revelation 14:8 N-GFS
GRK: θυμοῦ τῆς πορνείας αὐτῆς πεπότικεν
NAS: of the passion of her immorality.
KJV: of the wrath of her fornication.
INT: fury of the immorality of her she has given to drink

Revelation 17:2 N-GFS
GRK: οἴνου τῆς πορνείας αὐτῆς
NAS: with the wine of her immorality.
KJV: the wine of her fornication.
INT: wine of the sexual immorality of her

Revelation 17:4 N-GFS
GRK: ἀκάθαρτα τῆς πορνείας αὐτῆς
NAS: and of the unclean things of her immorality,
KJV: filthiness of her fornication:
INT: uncleanness of the sexual immorality of her

Revelation 18:3 N-GFS
GRK: θυμοῦ τῆς πορνείας αὐτῆς πέπωκαν
NAS: of the passion of her immorality, and the kings
KJV: of her fornication, and
INT: fury of the sexual immorality of her have drunk

Revelation 19:2 N-DFS
GRK: ἐν τῇ πορνείᾳ αὐτῆς καὶ
NAS: the earth with her immorality, and HE HAS AVENGED
KJV: with her fornication, and hath avenged
INT: with the sexual immorality of her and

Strong's Greek 4202
25 Occurrences


πορνείᾳ — 8 Occ.
πορνεῖαι — 2 Occ.
πορνείαν — 3 Occ.
πορνείας — 12 Occ.

4201
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