Jahath was the first and Zizah was the second; but Jeush and Beriah did not have many sons, so they were counted as one family and received a single assignment.
Here we have, I. The crown entailed, according to the divine appointment, Ch1 23:1. David made Solomon king, not to reign with him, or reign under him, but only to reign after him. This he did, 1. When he was old and full of days. He was but seventy years old when he died, and yet he was full of days, satur dierum - satisfied with living in this world.
Commenting on 1 Chronicles 23:1-23
The sons of Kohath,.... The second son of Levi: Amram, Izhar, Hebron, and Uzziel, four; see Exo 6:18.
Now set your heart and your soul to seek the LORD your God; arise therefore, and build ye the sanctuary of the LORD God, to bring the ark of the covenant of the LORD, and the holy vessels of God, into the house that is to be built to the name of the LORD.
Commenting on 1 Chronicles 23:1-12