C. F. Keil and Franz Delitzsch on Nehemiah 11:10-14

Neh 11:10-14

Of the priests: Jedaiah, Joiarib, and Jachin, three heads of houses, therefore of orders of priests (for בּן before Joiarib probably crept into the text by a clerical error; see rem. on 1Ch 9:10); Seraiah, a descendant of Ahitub, as ruler of the house of God, and their brethren, i.e., the eight hundred and twenty-two ministering priests belonging to these three orders. Also Adaiah, of the house or order of Malchiah, and his brethren, two hundred and forty-two fathers of families; and lastly, Amashai, of the order of Immer, with one hundred and twenty-eight brethren, i.e., priests. And their chief was Zabdiel ben Haggedolim (lxx υἱὸς τῶν μεγάλων). עליהם refers to all the before-named priests. לעבות ראשׁים heads of fathers, i.e., of families, Neh 11:13, is striking, for the brethren of Adaiah (אחיו), in number two hundred and forty-two, could not be heads of houses, but only fathers of families. The words seem to have come into the text only by comparing it with 1Ch 9:13. If they were genuine, we should be obliged to understand לעבות ראשׁים of fathers of families, contrary to general usage.