Those registered were 23,000, every male one month old or more; they were not registered among the other Israelites, because no inheritance was given to them among the Israelites.
He did not, however, give any inheritance to the tribe of Levi. This was their inheritance, just as he had promised: the food offerings made to the Lord, the God of Israel.
‘All the service of the Gershonites, all their transportation duties and all their other work, is to be done at the command of Aaron and his sons; you are to assign to them all that they are responsible to carry.
These were the ones registered by Moses and the priest Eleazar when they registered the Israelites on the plains of Moab by the Jordan opposite Jericho.