But the Levites were not counted among the other Israelites, as the LORD had commanded Moses.

Numbers 1:47
The Levites, however, were not numbered along with them by the tribe of their fathers.

Numbers 2:34
So the Israelites did everything the LORD commanded Moses; they camped under their standards in this way and set out in the same way, each man with his clan and his family.

Numbers 26:57
Now these were the Levites numbered by their clans: The Gershonite clan from Gershon, the Kohathite clan from Kohath, and the Merarite clan from Merari.

But the Levites were not numbered among the children of Israel; as the LORD commanded Moses.