1 Chronicles 15:4-11 -

This classification of the children of Aaron , as the special priests, and of the Levites , is constantly observed ( 1 Chronicles 12:26 , 1 Chronicles 12:27 ; 1 Chronicles 27:17 ). The mention of the six representative Levitical families follows. That of Kohath ( 1 Chronicles 15:5 ) takes the lead, because, though second in order of birth ( Genesis 46:11 ; Exodus 6:16-19 ; 1 Chronicles 6:1-30 ), its priestly importance gave it always first rank. To the same head belonged also three of the remaining five families, viz. Hebron ( 1 Chronicles 15:9 ) and Uzziel ( 1 Chronicles 15:10 ), who were brothers, as being beth sons of Kohath ( Exodus 6:18 ); and Elizaphan , who, though son of Uzziel ( Exodus 6:22 ), had come to represent a distinct family ( Numbers 3:30 ). The other two required to complete the six are Asaiah ( 1 Chronicles 15:6 ) of the house of Merari, and Joel (verse 7) of the house of Gershom. The representatives, then, of these six families, with the company of the brethren belonging to each of them, and the two priests Zadok and Abiathar (verse 11), are now summoned into the presence of David, to receive a short but special charge.