### Core Meaning & Semantic Range
The Greek word **eudía**, represented by `{{G2105}}`, means **fair weather** or a clear sky. It is derived from terms relating to good conditions and the weather. This word is exceptionally rare, appearing only **1 time** in **1 unique verse** in the entire Bible.
### Biblical Occurrences & Contextual Analysis
The single biblical use of `{{G2105}}` occurs in a saying referenced by Jesus. In [[Matthew 16:2]], when the Pharisees and Sadducees ask for a sign from heaven, Jesus responds by citing their own ability to forecast the weather. They would say that an evening with a red sky promised **fair weather** for the following day. This use of the word is part of a common observation about the natural world, which Jesus then uses to make a spiritual point.
### Related Words & Concepts
Several related words provide the context for understanding this specific weather prediction:
* `{{G4449}}` **pyrrházō** (be red): This word describes the color of the sky that leads to the forecast of fair weather. It is the visual sign that is being interpreted [[Matthew 16:2]].
* `{{G3798}}` **ópsios** (evening): This word specifies the time of day for the observation. A red sky at **evening** was the indicator of good weather to come [[Matthew 16:2]].
* `{{G3772}}` **ouranós** (the sky; by extension, heaven): This is the object being observed. The appearance of **the sky** is what is being read to determine the coming weather [[Matthew 16:2]].
### Theological Significance
While `{{G2105}}` itself does not carry significant theological weight, its context is profoundly important. It is used by Jesus to create a powerful contrast.
* **Natural Discernment:** The prediction of "fair weather" from a red sky represents the common ability of people to read and interpret signs in the physical, created world.
* **Spiritual Blindness:** Jesus immediately contrasts this physical discernment with his audience's inability to "discern the signs of the times" [[Matthew 16:3]]. They can forecast the weather but fail to recognize the spiritual reality standing before them.
* **A Sign of Rebuke:** The term is therefore part of a rebuke. The ease with which they predict something as simple as **fair weather** underscores the severity of their failure to understand matters of far greater importance, such as the kingdom of heaven.
### Summary
In summary, `{{G2105}}` is a simple word for **fair weather** whose importance comes entirely from its context. Used only once, it functions as one half of a metaphor employed by Jesus. It illustrates the human capacity for observing the natural world, which serves to highlight the spiritual inability of his listeners to recognize the divine work happening in their midst.
TRV