Several difficulties in the present Biblical text appear to have arisen from the attempt of later tradition to find a place for Aaron in certain incidents. In the account of the contention between Moses and his sister Miriam (Num. xii.), Aaron occupies only a secondary position, and it is very doubtful whether he was originally mentioned in the older surviving narratives. It is at least remarkable that he is only thrice mentioned in Deuteronomy (ix. 20, x. 6, xxxii. 50). The post-exilic narratives give him a greater share in the plagues of Egypt, represent him as high-priest, and confirm his position by the miraculous budding of his rod alone of all the rods of the other tribes (Num. xvii.; for parallels see Gray comm. ad loc., p. 217). The latter story illustrates the growth of the older exodus-tradition along with the development of priestly ritual: the old account of Korah's revolt against the authority of Moses has been expanded, and now describes (a) the divine prerogatives of the Levites in general, and (b) the confirmation of the superior privileges of the Aaronites against the rest of the Levites, a development which can scarcely be earlier than the time of Ezekiel (xliv. 15 seq.).
Aaron's son Eleazar was buried in an Ephraimite locality known after the grandson as the ``hill of Phinehas'' (Josh. xxiv. 33). Little historical information has been preserved of either. The name Phinehas (apparently of Egyptian origin) is better known as that of a son of Eli, a member of the priesthood of Shiloh, and Eleazar is only another form of Eliezer the son of Moses, to whose kin Eli is said to have belonged. The close relation between Aaronite and Levitical names and those of clans related to Moses is very noteworthy, and it is a curious coincidence that the name of Aaron's sister Miriam appears in a genealogy of Caleb (1 Chron. iv. 17) with Jether (cp. JETHRO) and Heber (cp. KENITES). In view of the confusion of the traditions and the difficulty of interpreting the details sketched above, the recovery of the historical Aaron is a work of peculiar intricacy. He may well have been the traditional head of the priesthood, and R. H. Kennett has argued in favour of the view that he was the founder of the cult at Bethel (Journ. of Theol. Stud., 1905, pp. 161 sqq.), corresponding to the Mosaite founder of Dan (q.v.). This throws no light upon the name, which still remains quite obscure: and unless Aaron (Aharon) is based upon Aron, ``ark'' (Redslob, R. P. A. Dozy, J. P. N. Land), names associated with Moses and Aaron, which are, apparently, of South Palestinian (or North-Arabian) origin.
For the literature and a general account of the Jewish priesthood, see the articles LEVTTES and PRIEST. . (S. A. C.)