1 Chronicles 23:3
The Levites 30 years old or more were counted;
1 Chronicles 23:24
These were the sons of Levi by their ancestral houses—the heads of families, according to their registration by name in the headcount—20 years old or more, who worked in the service of the Lord’s temple.
Numbers 4:2-49
“Among the Levites, take a census of the Kohathites
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
“Among the Levites, take a census of the Kohathites by their clans and their ancestral houses,
Thirty and eight
Numbers 4:48
Their registered men numbered 8,580.
General references
Numbers 4:35
men from 30 years old to 50 years old, everyone who was qualified for work at the tent of meeting.