2 Chronicles 31:16

Revised Standard Version (RSV-CI)

except those enrolled by genealogy, males from three years old and upwards, all who entered the house of the Lord as the duty of each day required, for their service according to their offices, by their divisions.

Cross References

1 Chronicles 23:3

The Levites, thirty years old and upward, were numbered, and the total was thirty-eight thousand men.

Ezra 3:4

And they kept the feast of booths, as it is written, and offered the daily burnt offerings by number according to the ordinance, as each day required,