Who was Aaron in the Bible? Aaron is best known for his role in the exodus and for being the first of the Levitical, or Aaronic, priesthood. He was born to a family of Levites during Israel’s enslavement in Egypt and was Moses’ older brother, three years his senior (Exodus 7:7).
In Exodus 32, Aaron instructs the Israelites, who had grown restless during Moses’ long sojourn at Mount Sinai, to gather their jewelry and fashion a golden calf. He then constructs an altar and begins to worship.