Now Korah, the son of Izhar, the son of Kohath, the son of Levi, and Dathan and Abiram, the sons of Eliab, and On, the son of Peleth, sons of Reuben, took men:

Wesley's Notes

16:1 The son of Izhar - Amram's brother, Exo 6:18, therefore Moses and he were cousin germans. Moreover, Izhar was the second son of Kohath, whereas Elizaphan, whom Moses had preferred before him, and made prince or ruler of the Kohathites, Num 3:30, was the son of Uzziel, the fourth son of Kohath. This, the Jewish writers say, made him malcontent, which at last broke forth into sedition. Sons of Reuben - These are drawn into confederacy with Korah, partly because they were his next neighbours, both being encamped on the south - side, partly in hopes to recover their rights of primogeniture, in which the priesthood was comprehended, which was given away from their father.

Jamieson-Fausset-Brown Bible Commentary

CHAPTER 16

Nu 16:1-30. The Rebellion of Korah.

1, 2. Now Korah, the son of Izhar-Izhar, brother of Amram (Ex 6:18), was the second son of Kohath, and for some reason unrecorded he had been supplanted by a descendant of the fourth son of Kohath, who was appointed prince or chief of the Kohathites (Nu 3:30). Discontent with the preferment over him of a younger relative was probably the originating cause of this seditious movement on the part of Korah.

Dathan and Abiram, . and On-These were confederate leaders in the rebellion, but On seems to have afterwards withdrawn from the conspiracy [compare Nu 16:12, 24, 25, 27; 26:9; De 11:6; Ps 106:17].

took men-The latter mentioned individuals, being all sons of Reuben, the eldest of Jacob's family, had been stimulated to this insurrection on the pretext that Moses had, by an arbitrary arrangement, taken away the right of primogeniture, which had vested the hereditary dignity of the priesthood in the first-born of every family, with a view of transferring the hereditary exercise of the sacred functions to a particular branch of his own house; and that this gross instance of partiality to his own relations, to the permanent detriment of others, was a sufficient ground for refusing allegiance to his government. In addition to this grievance, another cause of jealousy and dissatisfaction that rankled in the breasts of the Reubenites was the advancement of Judah to the leadership among the tribes. These malcontents had been incited by the artful representations of Korah (Jude 11), with whom the position of their camp on the south side afforded them facilities of frequent intercourse. In addition to his feeling of personal wrongs, Korah participated in their desire (if he did not originate the attempt) to recover their lost rights of primogeniture. When the conspiracy was ripe, they openly and boldly declared its object, and at the head of two hundred fifty princes, charged Moses with an ambitious and unwarrantable usurpation of authority, especially in the appropriation of the priesthood, for they disputed the claim of Aaron also to pre-eminence [Nu 16:3].

Matthew Henry's Concise Commentary

16:1-11 Pride and ambition occasion a great deal of mischief both in churches and states. The rebels quarrel with the settlement of the priesthood upon Aaron and his family. Small reason they had to boast of the people's purity, or of God's favour, as the people had been so often and so lately polluted with sin, and were now under the marks of God's displeasure. They unjustly charge Moses and Aaron with taking honour to themselves; whereas they were called of God to it. See here, 1. What spirit levellers are of; those who resist the powers God has set over them. 2. What usage they have been serviceable. Moses sought instruction from God. The heart of the wise studies to answer, and asks counsel of God. Moses shows their privileges as Levites, and convicts them of the sin of undervaluing these privileges. It will help to keep us from envying those above us, duly to consider how many there are below us.