1 Chronicles 23:3
The Levites were numbered from thirty years old and upward: and their number by their polls, man by man, was thirty-eight thousand.
1 Chronicles 23:24
These were the sons of Levi after their fathers' houses, even the heads of ancestral houses of those who were counted individually, in the number of names by their polls, who did the work for the service 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, by their fathers' houses,
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, by their fathers' houses,
Thirty and eight
Numbers 4:48
even those who were numbered of them, were eight thousand five hundred eighty.
General references
Numbers 4:35
from thirty years old and upward even to fifty years old, everyone who entered into the service, for work in the Tent of Meeting.