Mary was of the tribe of Judah and the house of David the king.
Elizabeth was of the tribe of Levi and the house of Aaron.
How could they be related?
Lk 1:27 To a virgin espoused to a man whose name was Joseph, of the house of David; and the virgin's name was Mary.
Lk 1:5 There was in the days of Herod, the king of Judaea, a certain priest named Zacharias, of the course of Abia: and his wife was of the daughters of Aaron, and her name was Elisabeth.
Elizabeth was of the tribe of Levi and the house of Aaron.
How could they be related?
Lk 1:27 To a virgin espoused to a man whose name was Joseph, of the house of David; and the virgin's name was Mary.
Lk 1:5 There was in the days of Herod, the king of Judaea, a certain priest named Zacharias, of the course of Abia: and his wife was of the daughters of Aaron, and her name was Elisabeth.