“So when David was old and full of days, he made Solomon his son king over Israel.”
Cross references: : 1 Kings 1:30
“Moreover four thousand were porters; and four thousand praised the LORD with the instruments which I made, said David, to praise therewith.”
Hebrew, I made , meaning David.
“The sons of Amram; Aaron and Moses: and Aaron was separated, that he should sanctify the most holy things, he and his sons for ever, to burn incense before the LORD, to minister unto him, and to bless in his name for ever.”
Exod. 2:2 ; Exod. 6:20 ; Heb. 5:4 , 5 That is, to serve in the most holy place, and to consecrate the holy things.
“Now concerning Moses the man of God, his sons were named of the tribe of Levi.”
They were but of the order of the Levites, and not of the Priests as Aaron’s sons.
“And the sons of Eliezer were, Rehabiah the chief. And Eliezer had none other sons; but the sons of Rehabiah were very many. the chief: or, the first very many: Heb. were highly multiplied”
The Scripture useth to call chief or the firstborn, although he be alone and there be none born after, Matt. 1:25 .
“These were the sons of Levi after the house of their fathers; even the chief of the fathers, as they were counted by number of names by their polls, that did the work for the service of the house of the LORD, from the age of twenty years and upward.”
David did choose the Levites twice, first at the age of thirty, as verse 3 and again afterward at 20, as the necessity of the office did require: at the beginning they had no charge in the Temple, before they were five and twenty years old, and had none after fifty, Num. 4:3 .
“Because their office was to wait on the sons of Aaron for the service of the house of the LORD, in the courts, and in the chambers, and in the purifying of all holy things, and the work of the service of the house of God; their: Heb. their station was at the hand of the sons of Aaron”
In washing and cleansing all the holy vessels.