כֵּף
a hollow rock
Definition
The Hebrew noun כֵּף (kêph) refers to a hollow rock or a rocky crag, often describing a natural rock formation that provides shelter or concealment. In Job 30:6, it depicts the desolate, rocky terrain where outcasts dwell, emphasizing a place of refuge in harsh wilderness. In Jeremiah 4:29, it describes the rocky hiding places where people flee from impending judgment, highlighting its role as a temporary shelter. The word consistently conveys the idea of a rock that is not solid but has cavities or hollows, offering both physical protection and symbolic isolation.
Biblical Usage
כֵּף appears only twice in the Old Testament, both times in poetic or prophetic contexts. In Job 30:6, it is used to describe the miserable dwelling places of the poor and outcast, emphasizing social marginalization. In Jeremiah 4:29, it portrays the rocky refuges where people hide from divine wrath during a time of national crisis. The usage patterns show it as a literary device for conveying desolation, fear, and seeking shelter in times of distress, rather than a common term for everyday rocks.
Etymology
כֵּף derives from the root כָּפַף (kāphaph, H3721), meaning 'to bend' or 'to curve,' which likely relates to the hollow, curved shape of such rock formations. This etymological connection emphasizes the physical characteristic of a rock with an interior space or overhang, distinguishing it from solid stone. Cognates in other Semitic languages also point to meanings involving hollows or cavities, reinforcing its specific sense in Hebrew.
Semantic Range
Though כֵּף is a rare word, it theologically enriches themes of refuge and judgment in Scripture. In Job 30:6, it illustrates human desperation and God's attention to the marginalized, while in Jeremiah 4:29, it underscores the futility of hiding from God's judgment (cf. Amos 9:2-3). Understanding this Hebrew term deepens appreciation for biblical imagery of God as the true rock of salvation (e.g., Psalm 18:2), contrasted with fragile, hollow rocks that offer only temporary safety.
In ancient Near Eastern culture, hollow rocks or crags were practical shelters for shepherds, travelers, or outlaws in Israel's rugged terrain. They provided protection from weather, wild animals, or enemies, but were also associated with isolation and danger. This contrasts with modern perceptions of rocks as merely solid objects, highlighting how biblical authors used specific terms to evoke vivid, culturally understood settings of vulnerability or secrecy.
סֶלַע (selaʿ, H5553) — a large, solid rock or cliff, often symbolizing God's strength; צוּר (tsûr, H6697) — a rock or boulder, frequently used for God as a fortress; אֶבֶן (ʾeven, H68) — a general term for stone, used for building or tools.
Word Details
How this works
Hebrew definitions are from Brown-Driver-Briggs (1906) and Strong's Exhaustive Concordance (1890), both public domain. BDB was groundbreaking for its era but reflects 19th-century assumptions about Semitic etymology. Modern scholarship (HALOT, DCH) has revised many entries. Use these definitions as a starting point for exploration, not as the final word on a term's meaning in context.
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