### Core Meaning & Semantic Range
The Hebrew word **zᵉkûwkîyth**, represented by `{{H2137}}`, is defined as "properly, transparency, i.e. glass; crystal." This term is exceptionally rare, appearing only **1 time** in **1 unique verse** in the entire Bible. Its singular appearance is in a context that measures the value of worldly treasures against the supreme worth of divine wisdom.
### Biblical Occurrences & Contextual Analysis
The sole use of `{{H2137}}` is found in the book of Job, where it is listed among the most precious materials known to man. In a poetic discourse on the unsearchable nature of wisdom, the text states that "**gold** `{{H2091}}` and the **crystal** `{{H2137}}` cannot **equal** `{{H6186}}` it" [[Job 28:17]]. Here, crystal is used as a benchmark for high value, yet it is deemed insufficient to compare to or be exchanged for wisdom, which comes from God alone.
### Related Words & Concepts
Several words from its only context help illustrate the theme of immense value:
* `{{H2091}}` **zâhâb** (gold): Defined as **gold**, this word is frequently used to denote wealth [[Genesis 24:35]] and purity, especially after being tried by fire [[Job 23:10]].
* `{{H6337}}` **pâz** (fine gold): Meaning **pure (gold)** or **gold itself (as refined)**, this term often appears alongside `{{H2091}}` to emphasize the highest quality and desirability of a material, as seen in [[Psalms 19:10]] where God's judgments are more desired than "much **fine gold**."
* `{{H6186}}` **ʻârak** (equal): This root means **to set in a row, i.e. arrange, put in order**, and by extension, to **compare** or **equal**. While it is used in [[Job 28:17]] to establish a comparison of value, it is also used for preparing a table [[Psalms 23:5]] or directing a prayer [[Psalms 5:3]].
### Theological Significance
The theological weight of `{{H2137}}` is derived entirely from its specific role in Job 28:
* **A Standard of Material Value:** The word serves as a tangible symbol of peak earthly worth. By placing **crystal** alongside **gold** `{{H2091}}` and **jewels** of **fine gold** `{{H6337}}`, the passage establishes a category of the most precious items attainable by man.
* **The Incomparability of Wisdom:** Its primary function is to create a contrast that elevates divine wisdom. The statement that crystal "cannot **equal**" wisdom [[Job 28:17]] frames God's understanding as being on an entirely different plane of existence, beyond any material price or **exchange** `{{H8545}}`.
* **Metaphor of Purity:** The root definition of "transparency" suggests inherent clarity and flawlessness. This quality makes **crystal** an effective metaphor for something of immense, pure value, thereby strengthening the argument that even the most perfect earthly objects fall short of God's wisdom.
### Summary
In summary, `{{H2137}}` **zᵉkûwkîyth** is a highly specific term for **crystal** or **glass** whose significance is tied to its single, powerful use in scripture. Appearing only in [[Job 28:17]], it functions as a metaphor for supreme material value. In doing so, it serves the profound theological purpose of demonstrating that the most precious and pure items on earth are worthless when compared to the divine wisdom that cannot be found or purchased by man.