Numbers 4:2

2 `Take up the sum of the sons of Kohath from the midst of the sons of Levi, by their families, by the house of their fathers;

Numbers 4:2 Meaning and Commentary

Numbers 4:2

Take the sum of the sons of Kohath from among the sons of
Levi
They were to begin with them first, and number them:

after their families, by the house of their fathers;
as many as were of the age after mentioned; and the reason why they began with Kohath, and not Gershon, the eldest son, as in the former numbering, was; not as Aben Ezra suggests, because of Moses and Aaron, who sprung from him, for that, if it had any strength in it, would have held good before; but rather, as Chaskuni and others, because the Kohathites carried the ark and other holy things; though the true reason seems to be, because of the order observed in taking down the tabernacle, and removing the parts of it, and the things in it; and it was most proper and reasonable, when they were about to take it down, first to take out the ark, table which was the business of the Kohathites to carry; next to take down the curtains, coverings, and hangings for the tabernacle and court, and the doors thereof, which were the charge of the Merarites; wherefore, in this order the sum out of each of them fit for business were ordered to be numbered.

Numbers 4:2 In-Context

1 And Jehovah speaketh unto Moses, and unto Aaron, saying,
2 `Take up the sum of the sons of Kohath from the midst of the sons of Levi, by their families, by the house of their fathers;
3 from a son of thirty years and upward, even till a son of fifty years, every one going in to the host, to do work in the tent of meeting.
4 `This [is] the service of the sons of Kohath in the tent of meeting, the holy of holies:
5 that Aaron and his sons have come in, in the journeying of the camp, and have taken down the vail of the hanging, and have covered with it the ark of the testimony;
Young's Literal Translation is in the public domain.