What Is Aaron in the Bible?
Person
The brother of Moses and the first high priest of Israel. The priests were his descendants.
Where it appears in the Bible
Luke 1:5
What the Bible says
Luke 1:5
There was in the days of Herod, the king of Judea, a certain priest named Zachary, of the course of Abia; and his wife was of the daughters of Aaron, and her name Elizabeth.
Douay-Rheims Bible (Challoner revision), public domain.
Source: Exodus 28:1; Catholic Encyclopedia (1913), “Aaron” and “Priest, High”