### Core Meaning & Semantic Range
The Greek word **sálos**, represented by `{{G4535}}`, is defined as **a vibration, i.e. (specially), billow:--wave**. This specific term appears only **1 time** in **1 unique verse** in the Bible, making its single usage highly significant. It derives from a base word suggesting a vibration or agitation.
### Biblical Occurrences & Contextual Analysis
The sole biblical appearance of `{{G4535}}` is in a prophetic context describing the end times. In Luke's Gospel, it is stated there will be signs in the heavens, and on the earth, "distress of nations, with perplexity; the sea and the **waves** roaring" [[Luke 21:25]]. Here, the word illustrates a physical manifestation of the widespread chaos and turmoil of that period. The roaring **waves** contribute directly to the "perplexity" `{{G640}}` and "distress" `{{G4928}}` felt among the nations `{{G1484}}`.
### Related Words & Concepts
Several words found alongside `{{G4535}}` in its only scriptural context help to clarify its meaning:
* `{{G2281}}` **thálassa** (the sea): This is the source of the "waves." The term for **sea** is often used to describe literal bodies of water, but also serves as a setting for demonstrating power or enacting judgment ([[Matthew 8:26]], [[Mark 11:23]]).
* `{{G2278}}` **ēchéō** (to make a loud noise, i.e. reverberate): This verb describes the action of the sea and waves, translated as **roaring** [[Luke 21:25]]. It conveys a sense of overwhelming and powerful sound, used elsewhere to describe a "sounding" brass [[1 Corinthians 13:1]].
* `{{G4928}}` **synochḗ** (restraint, i.e. (figuratively) anxiety): This word captures the human response to the turmoil, translated as **distress**. It signifies a deep anxiety and is also used by Paul to describe writing a letter out of "much affliction and **anguish** of heart" [[2 Corinthians 2:4]].
### Theological Significance
The theological weight of `{{G4535}}` is tied directly to its eschatological context in [[Luke 21:25]].
* **Symbol of Cosmic and Earthly Turmoil:** The roaring **waves** are presented as a terrestrial sign that parallels cosmic signs in the sun `{{G2246}}`, moon `{{G4582}}`, and stars `{{G798}}`. This connects the chaos in the natural world to a broader, divinely-signaled event.
* **Manifestation of Human Anxiety:** The "waves roaring" are not a distant phenomenon but a direct cause of "distress of nations, with perplexity." The physical agitation of the sea `{{G2281}}` mirrors the internal agitation and anxiety of humanity.
* **Element of Prophetic Signs:** As one of the specific **signs** `{{G4592}}` mentioned, the action of the **waves** serves as an indicator of the fulfillment of prophecy. It is part of a series of unmistakable events that will occur upon the earth `{{G1093}}`.
### Summary
In summary, `{{G4535}}` **sálos** is a highly specific term whose single biblical use paints a vivid picture of end-times chaos. Found in [[Luke 21:25]], it is not merely a literal description of a wave but a symbol of the profound agitation and distress that will characterize that period. Its meaning is deepened by the associated concepts of the roaring sea, cosmic signs, and the resulting perplexity of all nations.
TRV