שָׁמִיר
a thorn; also (from its keenness for scratching) a gem, probably the diamond
Definition
The Hebrew word שָׁמִיר (shâmîyr) carries two primary meanings in the Old Testament. First, it refers to a thorn or brier, a wild, prickly plant that overruns cultivated land as a sign of judgment or abandonment (Isaiah 5:6, 7:23-25). Second, it denotes a very hard gemstone, likely a diamond or corundum, used for engraving because of its sharpness (Ezekiel 3:9, Zechariah 7:12). The connection between these senses lies in the concept of sharpness—whether the piercing point of a thorn or the cutting edge of a hard stone.
Biblical Usage
שָׁמִיר is used 11 times, predominantly in the prophetic book of Isaiah. In Isaiah, it consistently symbolizes desolation and divine judgment, where God promises that fruitful vineyards and palaces will be overgrown with thorns and briers (Isaiah 5:6, 32:13). In a few instances outside Isaiah, it refers to a hard gemstone symbolizing stubbornness (Ezekiel 3:9) or a tool for engraving (Jeremiah 17:1).
Etymology
The noun derives from the root שָׁמַר (shâmar, H8104), which means 'to guard' or 'keep.' However, שָׁמִיר appears to come from an earlier, related Semitic sense of the root meaning 'to be sharp' or 'to prick,' linking to the words for thorn and hard stone. Cognates in other Semitic languages also point to meanings of 'thorn' or 'flint.'
Semantic Range
This word is theologically significant as a powerful metaphor for God's judgment and human stubbornness. The prophetic use of 'thorn' illustrates the consequences of covenant unfaithfulness, turning blessing into curse (Isaiah 5:6). As a 'diamond,' it symbolizes an unyielding heart resistant to God's word (Zechariah 7:12). Understanding both meanings enriches readings of judgment passages and metaphors for spiritual hardness.
In ancient Israel, thorny thickets (shâmîr) were a common sight in neglected fields, instantly recognizable as a sign of agricultural failure and danger. The hard gemstone was among the most valuable and durable substances known, used for engraving seals or inscriptions on other stones. The modern concept of a decorative 'diamond' differs from its ancient use primarily as an industrial tool for cutting.
סִלּוֹן (sillôn, H7898) — a more general term for thorn or hook. חוֹחַ (chôach, H2336) — another common word for thorn or bramble, often used interchangeably. שָׁמִיר (in the gemstone sense) is conceptually related to צֹר (tsôr, H6697), a flint knife.
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.
Full methodology & sources →