Aaron had four sons, and only two of them carried the priesthood forward. When Nadab and Abihu died, “Eleazar and Ithamar executed the priest’s office” (1 Chronicles 24:2). Ithamar also appears in the wilderness, where the families of Gershon did their tabernacle work “under the hand of Ithamar” (Numbers 4:28). Generations later David divided the priests into twenty-four groups by lot, drawing from both houses, with more chief men from Eleazar’s side than from Ithamar’s. The chapter reads like a duty roster, name after name and turn after turn. It shows how carefully Scripture keeps track of ordinary, faithful service.
22 verses
And Aaron took him Elisheba, daughter of Amminadab, sister of Naashon, to wife; and she bare him Nadab, and Abihu, Eleazar, and Ithamar.
And take thou unto thee Aaron thy brother, and his sons with him, from among the children of Israel, that he may minister unto me in the priest's office, even Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.
This is the service of the families of the sons of Gershon in the tabernacle of the congregation: and their charge shall be under the hand of Ithamar the son of Aaron the priest.
Now these are the divisions of the sons of Aaron. The sons of Aaron; Nadab, and Abihu, Eleazar, and Ithamar.
But Nadab and Abihu died before their father, and had no children: therefore Eleazar and Ithamar executed the priest's office.
And David distributed them, both Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their offices in their service.
And there were more chief men found of the sons of Eleazar than of the sons of Ithamar; and thus were they divided. Among the sons of Eleazar there were sixteen chief men of the house of their fathers, and eight among the sons of Ithamar according to the house of their fathers.
Thus were they divided by lot, one sort with another; for the governors of the sanctuary, and governors of the house of God, were of the sons of Eleazar, and of the sons of Ithamar.
And Shemaiah the son of Nethaneel the scribe, one of the Levites, wrote them before the king, and the princes, and Zadok the priest, and Ahimelech the son of Abiathar, and before the chief of the fathers of the priests and Levites: one principal household being taken for Eleazar, and one taken for Ithamar.
Now the first lot came forth to Jehoiarib, the second to Jedaiah,
The third to Harim, the fourth to Seorim,
The fifth to Malchijah, the sixth to Mijamin,
The seventh to Hakkoz, the eighth to Abijah,
The ninth to Jeshua, the tenth to Shecaniah,
The eleventh to Eliashib, the twelfth to Jakim,
The thirteenth to Huppah, the fourteenth to Jeshebeab,
The fifteenth to Bilgah, the sixteenth to Immer,
The seventeenth to Hezir, the eighteenth to Aphses,
The nineteenth to Pethahiah, the twentieth to Jehezekel,
The one and twentieth to Jachin, the two and twentieth to Gamul,
The three and twentieth to Delaiah, the four and twentieth to Maaziah.
These were the orderings of them in their service to come into the house of the LORD, according to their manner, under Aaron their father, as the LORD God of Israel had commanded him.
Matthew George Easton, 1897
Palm isle, the fourth and youngest son of Aaron (1 Chr. 6:3). He was consecrated to the priesthood along with his brothers (Ex. 6:23); and after the death of Nadab and Abihu, he and Eleazar alone discharged the functions of that office (Lev. 10:6, 12; Num. 3:4). He and his family occupied the position of common priest till the high priesthood passed into his family in the person of Eli (1 Kings 2:27), the reasons for which are not recorded. (See ZADOK.)
William Smith, 1884
(land of palms), the youngest son of Aaron. (Exodus 6:23) (B.C. 1491.) After the death of Nadab and Abihu, (Leviticus 10:1) Eleazar and Ithamar were appointed to succeed to their places in the priestly office. (Exodus 28:1,40,43; Numbers 3:3,4; 1 Chronicles 24:2) In the distribution of services belonging to the tabernacle, and its transport on the march of the Israelites, the Gershonites and the Merarites were placed under the superintendence of Ithamar. (Exodus 38:21; Numbers 4:21-33) The high priesthood passed into the family of Ithamar in the person of Eli, but for what reason we are not informed.