aaronites

from Easton's 1897 Bible Dictionary
Aaronites
the descendants of Aaron, and therefore priests. Jehoiada, the
father of Benaiah, led 3,700 Aaronites as "fighting men" to the
support of David at Hebron (1 Chr. 12:27). Eleazar (Num. 3:32),
and at a later period Zadok (1 Chr. 27:17), was their chief.
    

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