Albert Barnes Commentary 2 Chronicles 35:5

"And stand in the holy place according to the divisions of the fathers` houses of your brethren the children of the people, and [let there be for each] a portion of a fathers` house of the Levites." — 2 Chronicles 35:5 (ASV)

The meaning of this verse is likely: “So divide yourselves that for every distinct family among the people who come to the Passover, there shall be a portion of a Levitical family to minister.”