Most of the Levites here named were mentioned before, Ch1 23:16, etc. They were of those who were to attend the priests in the service of the house of God. But they are here mentioned again as heads of the twenty-four courses of Levites (and about so many are here named), who were to attend the twenty-four courses of the priests: they are therefore said to cast lots over against their brethren (so they are called, not their lords), the sons of Aaron, who were not to lord it over God's clergy, as the original word is, Pe1 5:3. And, that the whole disposal of the affair might be of the Lord, the principal fathers cast lots over against their younger brethren; that is, those that were of the elder house came upon he level with those of the younger families, and took their place, not by seniority, but as God by the lot directed. Note, In Christ no difference is made between bond and free, elder and younger. The younger brethren, if they be faithful and sincere, shall be no less acceptable to Christ than the principal fathers.

These likewise cast lots - The Levites were divided into twenty-four orders; and these were appointed by lot to serve under the twenty-four orders of the priests: the first order of Levities under the first order of priests, and so on. The meaning is not very clear: "both elder and younger," says Bishop Patrick, "had their places by lot, not by seniority of houses. They who were of greater dignity drew lots against those who were of less; and were to take their courses according to the lot they drew." This may have been the case; but we are very little interested in the subject.

These likewise cast lots over against their brethren, the sons of Aaron,.... These, being divided into twenty four classes also, cast lots, which class should answer to, attend upon, and serve the first course of the priests, and which the second, and so on. And this they did in the same solemn and public manner as the priests had done:

in the presence of David the king, and Zadok, and Ahimelech, and the chief of the fathers of the priests and Levites; as in Ch1 24:6.

even the principal fathers over against their younger brethren; the sense is, either that the one stood over against the other, to be distributed by lot, the one as well as the other; or they were chosen by lot, let it fall as it would, without any regard to age or dignity, to the seniority or largeness of houses and families; but as they were chosen, be they younger or elder, richer or poorer, their families more or less numerous and ancient, so they took their places.

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one principal household--The marginal reading is preferable, "one house of the father." The lot was cast in a deliberate and solemn manner in presence of the king, the princes, the two high priests, and the chiefs of the priestly and Levitical families. The heads of families belonging to Eleazar and Ithamar were alternately brought forward to draw, and the name of each individual, as called, registered by an attendant secretary. To accommodate the casting of the lots to the inequality of the number, there being sixteen fathers' houses of Eleazar, and only eight of Ithamar, it was arranged that every house of Ithamar should be followed by two of Eleazar, or, what is the same thing, that every two houses of Eleazar should be followed by one of Ithamar. If, then, we suppose a commencement to have been made by Eleazar, the order would be as follows: one and two, Eleazar; three, Ithamar; four and five, Eleazar; six, Ithamar; seven and eight, Eleazar; nine, Ithamar; and so forth [BERTHEAU]. The lot determined also the order of the priests' service. That of the Levites was afterwards distributed by the same arrangement (Ch1 24:31).

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