### Core Meaning & Semantic Range
The Greek word **plýnō**, represented by `{{G4150}}`, means to "plunge" or launder clothing. Derived from an obsolete term for "to flow," its specific application is to wash. This word is exceptionally rare, appearing only **1 time** across **1 unique verse** in the Bible.
### Biblical Occurrences & Contextual Analysis
The sole use of `{{G4150}}` is found in a highly symbolic context within the book of Revelation. It describes the saints who have emerged from a period of intense suffering, stating they "have **washed** their robes, and made them white in the blood of the Lamb" [[Revelation 7:14]]. Here, the act of washing is not a literal cleansing with water but a spiritual purification achieved through a paradoxical agent: blood.
### Related Words & Concepts
Several related words are essential to understanding the context of `{{G4150}}`:
* `{{G3021}}` **leukaínō** (to whiten): This word describes the direct result of the washing in [[Revelation 7:14]]. The robes are not just cleansed; they are actively **made white**, a state of purity that, according to [[Mark 9:3]], no earthly fuller could achieve.
* `{{G129}}` **haîma** (blood): This is the cleansing agent used to wash the robes. The concept of **blood** as a means of redemption and forgiveness is a consistent theme, as seen in [[Ephesians 1:7]] and [[Revelation 5:9]].
* `{{G721}}` **arníon** (lamb): This word identifies the source of the purifying blood. The **Lamb** is a central figure in Revelation, whose sacrifice enables overcoming and redemption [[Revelation 12:11]].
### Theological Significance
The theological weight of `{{G4150}}` is concentrated in its single, powerful appearance.
* **Atoning Purification:** The action of washing robes in **blood** `{{G129}}` is a profound metaphor for salvation. It signifies a cleansing from sin that is only possible through the atoning sacrifice of the **Lamb** `{{G721}}`.
* **Righteousness through Faith:** Those who **wash** their robes are the ones who have come out of "great tribulation" [[Revelation 7:14]]. This act represents their identification with Christ's death, resulting in their robes being made **white** `{{G3021}}`, a symbol of imputed righteousness.
* **Victory and Overcoming:** The context connects this cleansing with ultimate victory. As stated in [[Revelation 12:11]], the saints overcome by the **blood** of the **Lamb** `{{G721}}` and their testimony.
### Summary
In summary, while `{{G4150}}` appears only once, its use in [[Revelation 7:14]] is pivotal. It encapsulates a core tenet of Christian theology: spiritual purification and righteousness are not achieved through ordinary means but through the paradoxical and powerful cleansing found in the blood of the Lamb. It transforms a common word for washing into a symbol of ultimate redemption.
TRV