Numbers 1:47

But the Levites according to the tribe of their fathers were not numbered among them.

Numbers 2:33

But the Levites were not numbered among the sons of Israel, as the LORD had commanded Moses.

Numbers 3:1-49

These also are the generations of Aaron and of Moses in the day that the LORD spoke with Moses in Mount Sinai.

Numbers 26:57-62

And these are those that were numbered of the Levites by their families: of Gershon, the family of the Gershonites; of Kohath, the family of the Kohathites; of Merari, the family of the Merarites.

1 Chronicles 6:1-81

The sons of Levi: Gershon, Kohath, and Merari.

Numbers 1:3

from twenty years old and upward, all that are able to go forth to war in Israel; thou and Aaron shall number them by their hosts.

Numbers 1:50

But thou shalt place the Levites in the tabernacle of the testimony and over all the vessels thereof and over all things that belong to it; they shall bear the tabernacle and all the vessels thereof; and they shall minister in it and shall encamp round about the tabernacle.

Numbers 8:1-26

And the LORD spoke unto Moses, saying,

1 Chronicles 21:6

Among these the Levites and the sons of Benjamin were not counted, for the king's word was abominable to Joab.

Treasury of Scripture Knowledge

Summary

But the Levites after the tribe of their fathers were not numbered among them.

Bible References

General references

Numbers 1:3
from twenty years old and upward, all that are able to go forth to war in Israel; thou and Aaron shall number them by their hosts.
Numbers 2:33
But the Levites were not numbered among the sons of Israel, as the LORD had commanded Moses.
Numbers 26:57
And these are those that were numbered of the Levites by their families: of Gershon, the family of the Gershonites; of Kohath, the family of the Kohathites; of Merari, the family of the Merarites.
1 Chronicles 21:6
Among these the Levites and the sons of Benjamin were not counted, for the king's word was abominable to Joab.