As concerning the sons of Laadan,.... The same with Libni, see 1 Chronicles 23:7.

the sons of the Gershonite Laadan; so called, to distinguish him from another Laadan, as Kimchi thinks:

chief fathers, even of Laadan the Gershonite; that sprung from him: were Jehieli; and his sons next mentioned.

1 Chronicles 26:21 and 1 Chronicles 26:22 to together: "The sons of Laadan, (namely) the sons of the Gershonite family which belong to Laadan, (namely) the heads of the fathers'-houses of Laadan of the Gershonite family: Jehieli, (namely) the sons of Jehieli, Zetham and his brother Joel (see 1 Chronicles 23:7), were over the treasures of the house of Jahve." The meaning is this: "Over the treasures of the house of Jahve were Zetham and Joel, the heads of the father's-house of Jehieli, which belonged to the Laadan branch of the Gershonites." Light is thrown upon these words, so obscure through their brevity, by 1 Chronicles 23:7-8, according to which the sons of Jehiel, or the Jehielites, are descended from Laadan, the older branch of the Gershonites. This descent is briefly but fully stated in the three clauses of the 21st verse, each of which contains a more definite characterization of the father's-house Jehieli, whose two heads Zetham and Joel were entrusted with the oversight of the treasures of the house of God.

As concerning the sons of Laadan; the sons of the Gershonite Laadan, chief fathers, even of Laadan the Gershonite, were Jehieli.

Laadan: also called, Libni

Jehieli: also called, Jehiel

26:1-32 The offices of the Levites. - The porters and treasurers of the temple, had occasion for strength and valour to oppose those who wrongly attempted to enter the sanctuary, and to guard the sacred treasures. Much was expended daily upon the altar; flour, wine, oil, salt, fuel, beside the lamps; quantities of these were kept beforehand, besides the sacred vestments and utensils. These were the treasures of the house of God. These treasures typified the plenty there is in our heavenly Father's house, enough and to spare. From those sacred treasuries, the unsearchable riches of Christ, all our wants are supplied; and receiving from his fulness, we must give him the glory, and endeavour to dispose of our abilities and substance according to his will. We have an account of those employed as officers and judges. The magistracy is an ordinance of God for the good of the church, as truly as the ministry, and must not be neglected. None of the Levites who were employed in the service of the sanctuary, none of the singers or porters, were concerned in this outward business; one duty was enough to engage the whole man. Wisdom, courage, strength of faith, holy affections, and constancy of mind in doing our duty, are requisite or useful for every station.