📖 Biblical Definition
Aaron was the older brother of Moses (Ex 4:14, 7:7), the first high priest of Israel, and (with his sons) the founder of the Aaronic priesthood. He was Moses' spokesman before Pharaoh, lifted Moses' arms at the battle of Amalek (Ex 17:12), made the golden calf in Moses' absence (Ex 32, the great failure), was nevertheless ordained high priest, served until his death on Mount Hor (Num 20:23-29). Hebrews contrasts Aaron's temporary priesthood with Christ's eternal one.
📜 Webster 1828 Definition
Older brother of Moses; first high priest of Israel; founder of the Aaronic priesthood.
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Exodus and Numbers narrate his ministry: spokesman before Pharaoh, miracle-staff, support of Moses at Rephidim, complicit in golden calf (Ex 32), ordained as high priest (Lev 8), survived several rebellions, died on Mount Hor at 123 (Num 20:23-29).
His staff (rod) budded miraculously to vindicate his priesthood (Num 17). His blessing formula (Num 6:24-26) became Israel's and the Christian church's benediction. Hebrews 7-10 contrasts his temporary priesthood with Christ's eternal one.
📖 Key Scripture
Exodus 28:1 — "And take thou unto thee Aaron thy brother, and his sons with him, from among the children of Israel, that he may minister unto me in the priest's office."
Numbers 6:24 — "The LORD bless thee, and keep thee."
Numbers 17:8 — "And, behold, the rod of Aaron for the house of Levi was budded, and brought forth buds, and bloomed blossoms, and yielded almonds."
Hebrews 5:4 — "And no man taketh this honour unto himself, but he that is called of God, as was Aaron."
⚠️ Modern Corruption
Modern Christianity often skips Aaron except for the Aaronic blessing; the priesthood he founded is the framework for understanding Christ's superior priesthood in Hebrews.
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Hebrews 7-10 develops the Aaronic-Melchizedek-Christ progression: Aaron's priesthood was good but temporary, dependent on succession, multiplied because all the priests died. Christ's priesthood is permanent, unique, never-ending. Aaron is the type whose ministry lit up the deficiency Christ would fill.
Aaron's golden-calf failure (Ex 32) is striking. The first high priest's greatest moral failure happened at the foot of Sinai while the law was being given. Hebrews makes the comparison sharp: such a priesthood needed Christ's replacement; the saint's assurance is in the better Priest, not the original.
🔗 Greek & Hebrew Roots
Hebrew Aharon.
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Hebrew Aharon — meaning uncertain; possibly from har (mountain).
Note: Aaron's line continued through his son Eleazar; the high priesthood remained in his lineage until the Maccabean era.
Usage
"Such a priesthood needed Christ's replacement."
"The Aaronic blessing remains the church's benediction."
"Aaron's rod budded almonds — vindication of the priesthood."