### Core Meaning & Semantic Range
The Hebrew word **karkôb**, represented by `{{H3749}}`, is a specific architectural term defined as **a rim or top margin; compass**. It is a rare word in scripture, appearing only **2 times** in **2 unique verses**. Its meaning is confined to the structural details of the tabernacle's altar.
### Biblical Occurrences & Contextual Analysis
Both occurrences of `{{H3749}}` are found in the book of Exodus, within the detailed instructions for constructing the altar of burnt offering. In [[Exodus 27:5]], instructions are given to place a net under the **compass** of the altar, so that the net reaches the middle of the structure. Later, in [[Exodus 38:4]], the fulfillment of this command is recorded, stating that a brasen grate of network was made under the **compass** of the altar, positioned beneath it and extending to its midpoint. The term exclusively describes a specific rim or ledge on the altar designed to hold this grate.
### Related Words & Concepts
Several related words clarify the function and context of `{{H3749}}`:
* `{{H4196}}` **mizbêach** (an altar): This is the central object to which the `karkôb` is attached. The altar was a primary site for worship and sacrifice, as established by figures like Abram [[Genesis 12:7]] and designated as the place for making atonement [[Leviticus 17:11]].
* `{{H7568}}` **resheth** (a net; net-work): This is the object that the `karkôb` is designed to support. In the context of the altar, it refers to a specific grate-like structure, as described in both [[Exodus 27:5]] and [[Exodus 38:4]].
* `{{H4345}}` **makbêr** (a grate): This word is used in conjunction with "network" to describe the "brazen grate" [[Exodus 38:4]] that was made for the altar. The `karkôb` served as the support for this essential component.
### Theological Significance
While `{{H3749}}` is a technical term, its use has theological implications related to the object it describes.
* **Precision in Holy Objects:** The existence of such a specific term for a single part of the altar highlights the meticulous detail God required for the construction of the tabernacle. It reflects a divine blueprint where every component has a designated place and purpose ([[Exodus 27:5]], [[Exodus 38:4]]).
* **Supporting the Place of Atonement:** The `karkôb`'s function was to hold the grate of the altar `{{H4196}}`, the very place where sacrifices were offered. In doing so, it played a critical, supportive role in the system of atonement God established for Israel [[Leviticus 17:11]].
* **A Symbol of Order:** As a "rim or top margin," the word implies structure, boundary, and order. This speaks to the set-apart nature of the holy furnishings and the prescribed order for approaching a holy God.
### Summary
In summary, `{{H3749}}` **karkôb** is not a word with broad application but a precise term for a rim or ledge on the tabernacle's altar. Its significance is derived entirely from its context as a component of this crucial instrument of worship. The use of such a specific word demonstrates the profound importance of detail, order, and obedience in the construction and function of objects dedicated to God.
TRV