John Gill's Bible Commentary Ver. 7. Of the Gershonites were Laadan and Shimei .] These two were the immediate posterity of Gershon; are the same with Libni and Shimhi, and heads of families, ( Exodus 6:17).
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 לגרשׁני1649 לעדן3936 ושׁמעי׃8096