כִּי
(by implication) very widely used as a relative conjunction or adverb (as below); often largely modified by other partic…
Definition
The Hebrew word כִּי (kîy) is a versatile conjunction that primarily introduces causal, explanatory, or emphatic clauses. Its core meaning is 'that' or 'for,' often used to give a reason, as in 'God saw that it was good' (Genesis 1:10, 12, 18, 21, 25). It can also function as an emphatic particle meaning 'indeed, surely,' or introduce conditional clauses meaning 'if' or 'when.' In some contexts, especially after verbs of perception or speech, it simply introduces the content of what is seen or said, functioning similarly to the English 'that.'
Biblical Usage
כִּי is used nearly 4,000 times across all genres of the Old Testament, making it one of the most common words. It frequently appears in narrative to explain actions (e.g., Genesis 2:3, '...because on it God rested'), in legal texts to state conditions, in prophecy to introduce divine declarations, and in poetry for emphasis. Its meaning is heavily dependent on context, shifting between causal ('because'), explanatory ('for'), asseverative ('indeed'), and conditional ('if').
Etymology
כִּי is a primitive particle, meaning its origin is not traceable to a verbal root. It is considered the full form of the shorter prepositional prefix כְּ (kə-, 'as, like'). Cognates exist in other Semitic languages like Ugaritic and Phoenician, where similar particles serve comparable functions, indicating it is a fundamental connective word in the Northwest Semitic language family.
Semantic Range
Understanding כִּי is crucial for grasping logical connections and divine reasoning in the biblical text. It often introduces the grounds for God's actions, judgments, or promises, revealing His character and purposes. For example, in Genesis 1:4, 'God saw the light, that (כִּי) it was good,' the word connects God's perception to His evaluative declaration, highlighting the inherent goodness of creation. Its varied uses help readers discern cause and effect, conditions for blessing or curse, and the certainty of God's statements, enriching exegesis of key theological arguments.
אֲשֶׁר (ʾăšer, H834) — A more general relative pronoun ('who, which, that'), often used where כִּי might introduce a noun clause. | כְּ (kə, H3651) — The shorter prepositional form meaning 'as, like,' sharing a etymological connection but used for comparison rather than causation.
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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