### Core Meaning & Semantic Range
The Greek word **porneúō**, represented by `{{G4203}}`, is used to describe the act of harlotry or idolatry. It is defined as to **commit (fornication)**. It appears 8 times across 7 unique verses. The definition encompasses both the literal act of indulging unlawful lust and the figurative practice of idolatry.
### Biblical Occurrences & Contextual Analysis
In its biblical usage, `{{G4203}}` carries a strong warning. Paul commands believers to "Flee fornication," uniquely identifying the one who does so as sinning against his own body [[1 Corinthians 6:18]]. The term is also used as a historical warning, reminding believers not to **commit fornication** as some of the Israelites did, resulting in a great plague [[1 Corinthians 10:8]]. In Revelation, the term is used figuratively to describe spiritual unfaithfulness, such as following the doctrine of Balaam [[Revelation 2:14]] or being seduced by the false prophetess Jezebel [[Revelation 2:20]]. It also characterizes the corrupt relationship between the "kings of the earth" and the great harlot, Babylon [[Revelation 17:2]].
### Related Words & Concepts
Several related words help clarify the meaning and context of `{{G4203}}`:
* `{{G4202}}` **porneía** (fornication): This is the noun form, defined as "harlotry (including adultery and incest); figuratively, idolatry." It is the very thing believers are commanded to flee in [[1 Corinthians 6:18]].
* `{{G264}}` **hamartánō** (to sin): Defined as "to err, especially (morally) to sin," this general term for sinning is used in [[1 Corinthians 6:18]] to state that he who commits fornication `{{G4203}}` "sinneth" `{{G264}}` against his own body.
* `{{G1494}}` **eidōlóthyton** (things sacrificed unto idols): Meaning "an image-sacrifice," this term is repeatedly paired with committing fornication `{{G4203}}` in Revelation, linking the physical act to the spiritual corruption of idolatry ([[Revelation 2:14]], [[Revelation 2:20]]).
### Theological Significance
The theological weight of `{{G4203}}` is significant, highlighting themes of purity, faithfulness, and judgment.
* **A Unique Trespass:** The act is set apart as a sin against one's own body, unlike other sins which are considered "without the body" [[1 Corinthians 6:18]].
* **Spiritual Unfaithfulness:** To **commit fornication** serves as a potent metaphor for idolatry and accepting false teaching. This is seen in the condemnation of those who follow the doctrine of Balaam or are seduced by Jezebel ([[Revelation 2:14]], [[Revelation 2:20]]).
* **Corrupt Worldly Alliance:** The kings and merchants of the earth are judged for having **committed fornication** with Babylon, symbolizing their participation in a global system of idolatry, luxury, and rebellion that incurs God's wrath ([[Revelation 18:3]], [[Revelation 18:9]]).
### Summary
In summary, `{{G4203}}` is a powerful term that addresses both literal and figurative unfaithfulness. It serves as a stern command for physical purity and a vivid metaphor for the sin of idolatry. From a personal sin against the body to a symbol of worldwide corruption, **porneúō** underscores the biblical demand for exclusive loyalty to God in both action and worship.
TRV