These were the chief of the fathers of Laadan. —Rather, heads of the father-houses to Laadan. The names seem to be at onc…

The sons of Shimei
Not him that was the son of Gershon, but a descendant of Laadan, his son, as Kimchi observes:

David, having given charge concerning the building of the temple, settles the method of the temple service and orders its officers. When those of t…