38 And those whose tents are to be placed on the east side of the House in front of the Tent of meeting, looking to the dawn, are Moses and Aaron and his sons, who will do the work of the holy place for the children of Israel; and any strange person who comes near will be put to death.

Matthew Henry's Commentary on Numbers 3:38

Commentary on Numbers 3:14-39

(Read Numbers 3:14-39)

The Levites were in three classes, according to the sons of Levi; Gershon, Kohath, and Merari; and these were subdivided into families. The posterity of Moses were not at all honoured or privileged, but stood upon the level with other Levites; thus it was plain, that Moses did not seek the advancement of his own family, or to secure any honours to it. The tribe of Levi was by much the least of all the tribes. God's chosen are but a little flock in comparison with the world.