John Gill's Bible Commentary Ver. 9. The sons of Shimei , etc.] Not him that was the son of Gershon, but a descendant of Laadan, his son, as Kimchi observes: Shelomith, and Haziel, and Haran, these were the chief of the fathers of Laadan ; of the families that sprang from him.
Matthew Henry Commentary
Verses 1-23 - David, having given charge concerning the building of the temple settles the method of the temple service, and orders the officers of it. When those of the same family were employed together, it woul engage them to love and assist one another.
Original Hebrew בני1121 שׁמעי8096 שׁלמות8013 וחזיאל2381 והרן2039 שׁלשׁה7969 אלה428 ראשׁי7218 האבות1 ללעדן׃3936