13 The sons of Amram: Aaron and Moses. Aaron was set apart, he and his descendants forever, to consecrate the most holy things, to offer sacrifices before the Lord, to minister before him and to pronounce blessings in his name forever.

Matthew Henry's Commentary on 1 Chronicles 23:13

Commentary on 1 Chronicles 23:1-23

(Read 1 Chronicles 23:1-23)

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 would engage them to love and assist one another.