Numbers 1:47

The Exemption of the Levites

1:47 But the Levites, according to the tribe of their fathers, were not numbered among them.

Numbers 2:33

2:33 But the Levites were not numbered among the other Israelites, as the Lord commanded Moses.

Numbers 26:62

26:62 Those of them who were numbered were 23,000, all males from a month old and upward, for they were not numbered among the Israelites; no inheritance was given to them among the Israelites.