2 Chronicles 31:17

They made disbursements to the priests listed in the genealogical records by their families, and to the Levites twenty years old and up, according to their duties as assigned to their divisions,

1 Chronicles 23:24

These were the descendants of Levi according to their families, that is, the leaders of families as counted and individually listed who carried out assigned tasks in the Lord's temple and were twenty years old and up.

1 Chronicles 23:27

According to David's final instructions, the Levites twenty years old and up were counted.

Numbers 3:15

"Number the Levites by their clans and their families; every male from a month old and upward you are to number."

Numbers 3:20

The sons of Merari by their families were Mahli and Mushi. These are the families of the Levites by their clans.

Numbers 4:3

from thirty years old and upward to fifty years old, all who enter the company to do the work in the tent of meeting.

Numbers 4:38

Those numbered from the Gershonites, by their families and by their clans,

Numbers 4:42

Those numbered from the families of the Merarites, by their families, by their clans,

Numbers 4:46

All who were numbered of the Levites, whom Moses, Aaron, and the leaders of Israel numbered by their families and by their clans,

Numbers 8:24

"This is what pertains to the Levites: At the age of twenty-five years and upward one may begin to join the company in the work of the tent of meeting,

Numbers 17:2-3

"Speak to the Israelites, and receive from them a staff from each tribe, one from every tribal leader, twelve staffs; you must write each man's name on his staff.

1 Chronicles 24:20-26

The rest of the Levites included: Shubael from the sons of Amram, Jehdeiah from the sons of Shubael,

2 Chronicles 31:2

Hezekiah appointed the divisions of the priests and Levites to do their assigned tasks -- to offer burnt sacrifices and present offerings and to serve, give thanks, and offer praise in the gates of the Lord's sanctuary.

Ezra 2:59

These are the ones that came up from Tel Melah, Tel Harsha, Kerub, Addon, and Immer (although they were unable to certify their family connection or their ancestry, as to whether they really were from Israel):

Treasury of Scripture Knowledge

Summary

Both to the genealogy of the priests by the house of their fathers, and the Levites from twenty years old and upward, in their charges by their courses;

Bible References

Genealogy

Numbers 3:15
"Number the Levites by their clans and their families; every male from a month old and upward you are to number."
Numbers 4:38
Those numbered from the Gershonites, by their families and by their clans,
Numbers 17:2
"Speak to the Israelites, and receive from them a staff from each tribe, one from every tribal leader, twelve staffs; you must write each man's name on his staff.
Ezra 2:59
These are the ones that came up from Tel Melah, Tel Harsha, Kerub, Addon, and Immer (although they were unable to certify their family connection or their ancestry, as to whether they really were from Israel):

Twenty

Numbers 4:3
from thirty years old and upward to fifty years old, all who enter the company to do the work in the tent of meeting.
Numbers 8:24
"This is what pertains to the Levites: At the age of twenty-five years and upward one may begin to join the company in the work of the tent of meeting,
1 Chronicles 23:24
These were the descendants of Levi according to their families, that is, the leaders of families as counted and individually listed who carried out assigned tasks in the Lord's temple and were twenty years old and up.

By their courses

2 Chronicles 31:2
Hezekiah appointed the divisions of the priests and Levites to do their assigned tasks -- to offer burnt sacrifices and present offerings and to serve, give thanks, and offer praise in the gates of the Lord's sanctuary.
1 Chronicles 24:20
The rest of the Levites included: Shubael from the sons of Amram, Jehdeiah from the sons of Shubael,

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