Only the tribe of Levi you shall not enroll, and you shall not take a census of them with the other Israelites.
The Lord had said to Moses:
Just as the Lord had commanded Moses, the Levites were not enrolled among the other Israelites.
The number of those enrolled was twenty-three thousand, every male one month old and up; for they were not enrolled among the Israelites because there was no allotment given to them among the Israelites.