אָח
a brother (used in the widest sense of literal relationship and metaphorical affinity or resemblance (like father))
Definition
The Hebrew word אָח (ʼâch) primarily means 'brother' in a literal, familial sense, referring to a male sibling, as seen in the story of Cain and Abel (Genesis 4:2, 8-11). Its meaning extends metaphorically to denote any close relational bond, including members of the same tribe or nation (Leviticus 19:17), allies in a covenant (Amos 1:9), or even a general term for a fellow human being (Proverbs 17:17). In some contexts, it can indicate mere similarity or likeness, such as in the phrase 'one another.'
Biblical Usage
אָח is used extensively throughout the Old Testament, appearing 572 times. It is most frequent in narrative and legal texts (e.g., Genesis, Leviticus) defining kinship and social obligations. A key pattern is its use in laws governing relationships between Israelites, emphasizing communal responsibility (e.g., Deuteronomy 15:7-12). Poetic books like Proverbs employ it for proverbial wisdom about friendship and loyalty (Proverbs 18:24).
Etymology
It is a primitive, common Semitic root word. Cognates exist in related languages like Aramaic and Arabic. As a basic kinship term, its meaning is stable, though its semantic range expanded naturally from literal brotherhood to broader metaphorical associations of fellowship and resemblance within the Hebrew worldview.
Semantic Range
This word is theologically significant as it underpins the biblical concept of covenant community. Israel is repeatedly called to regard fellow Israelites as 'brothers' (Deuteronomy 15:7), forming the basis for social justice, mercy, and ethical treatment. This familial model foreshadows the New Testament teaching of the church as a brotherhood in Christ (1 Peter 2:17). Understanding this Hebrew term enriches reading by highlighting the profound obligation and intimacy intended in God's covenant people.
In ancient Israel's patriarchal and tribal society, the term 'brother' carried stronger obligations than in many modern individualistic contexts. It implied a duty of protection, financial redemption (Leviticus 25:25-26, 47-49), and vengeance (2 Samuel 14:7). The bond was a foundational social and legal construct, extending well beyond immediate blood relations to define in-group loyalty and identity.
רֵעַ (reaʻ, H7453) — a friend, companion, or neighbor; often a more general term for an associate. אָחוֹת (ʼâchôwth, H269) — the direct feminine counterpart, meaning 'sister.' מֵרֵעַ (mêrêaʻ, H4828) — a close friend or intimate companion.
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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