From Kohath came the clans of the Amramites, the Izharites, the Hebronites, and the Uzzielites; these were the clans of the Kohathites.
The Levites being granted to Aaron to minister to him, they are here delivered to him by tale, that he might know what he had, and employ them accordingly. Observe, I. By what rule they were numbered: Every male from a month old and upward, Num 3:15.
Commenting on Numbers 3:14-39
And of Kohath was the family of the Amramites,.... So called from Amram, the first son of Kohath, and father of Aaron and Moses; so that Moses and Aaron, and their children, are included in this family: and the family of Izeharites; of which family was Korah, Num 16:1, and the family of the Hebronites, and the family of the Uzzielites; which four families had...
Num 3:27-31 The Kohathites, who were divided into four families, and numbered 8600, were to encamp on the south side of the tabernacle, and more especially to keep the charge of the sanctuary (Num 3:28), viz., to take care of the ark of the covenant, the table (of shew-bread), the candlestick, the altars (of incense and burnt-offering), with the holy things required for the service...
Commenting on Numbers 3:27-31