1 Chronicles 23:3
The Levites thirty years old and upward were counted, and their number man by man was 38,000.
1 Chronicles 23:24
These were the Levites by their fathers’ households, the heads of the fathers’ households of those registered, according to the number of names of the individuals who were the servants of the house of the Lord, from twenty years old and upward.
Numbers 4:2-49
“Take a census of the sons of Kohath from among the sons of Levi, by their families (clans), by their fathers’ households,
Treasury of Scripture Knowledge
Summary
Now the Levites were numbered from the age of thirty years and upward: and their number by their polls, man by man, was thirty and eight thousand.
The levites
Thirty and eight
General references
Bible References
The levites
Numbers 4:2
“Take a census of the sons of Kohath from among the sons of Levi, by their families (clans), by their fathers’ households,
Thirty and eight
Numbers 4:48
the men that were numbered were 8,580.
General references
Numbers 4:35
from thirty years and upward even to fifty years old, everyone who enters the service to do the work in the Tent of Meeting (tabernacle);