“When Aaron and his sons have finished covering the holy things and the camp is ready to move, the Kohathites will come to carry all the holy articles. They must never touch the holy things, or they will die. The Kohathites will carry all the things from the tent of meeting.
This was the total of all those in the Kohathite families who served at the tent of meeting. Moses and Aaron did as the Lord had commanded Moses and registered the Kohathites.