1 Chronicles 23:3

Now the Levites were numbered, from thirty years old and upwards, - and their number by their polls, of mature men, was thirty-eight thousand.

1 Chronicles 23:24

These, were the sons of Levi by their ancestral house, the ancestral chiefs of them who were counted in the number of their names, by their polls, doing the work, for the service of the house of Yahweh, - from twenty years old, and upwards.

Numbers 4:2-49

Reckon up the sum of the sons of Kohath, out of the midst of the sons of Levi, - by their families by their ancestral house:

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
Reckon up the sum of the sons of Kohath, out of the midst of the sons of Levi, - by their families by their ancestral house:

Thirty and eight

Numbers 4:48
yea, they who were numbered of them were found to be - eight thousand, and five hundred, and eighty.

General references

Numbers 4:35
from thirty years old and upwards, even unto fifty years old, all that might enter the host, to labour in the tent of meeting;