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). We are first introduced to Aaron in Exodus 4 when God tells Moses that He will send Aaron, Moses’ brother, with him to free the Israelites from Pharaoh.