1 Chronicles 23:27

For by the last words of David was this done, the numbering of the sons of Levi from twenty years old and upward.

1 Chronicles 23:24

These were the sons of Levi according to their fathers' houses, the chief fathers, as they were reckoned, by number of names by their polls, who did the work of the service of the house of Jehovah, from twenty years old and upward.

2 Samuel 23:1

Now these are the last words of David: David the son of Jesse saith, And the man who was raised up on high, The anointed of the God of Jacob, And the sweet psalmist of Israel saith,

1 Chronicles 23:3

And the Levites were numbered from thirty years old and upward; and their number, by their polls, man by man, was thirty-eight thousand.

Psalm 72:20

The prayers of David the son of Jesse are ended.

Treasury of Scripture Knowledge

Summary

For by the last words of David the Levites were numbered from twenty years old and above:

General references

Bible References

By the last

1 Chronicles 23:3
And the Levites were numbered from thirty years old and upward; and their number, by their polls, man by man, was thirty-eight thousand.
2 Samuel 23:1
Now these are the last words of David: David the son of Jesse saith, And the man who was raised up on high, The anointed of the God of Jacob, And the sweet psalmist of Israel saith,
Psalm 72:20
The prayers of David the son of Jesse are ended.

General references

Numbers 4:35
from thirty years old and upward even to fifty years old, every one that entered into the labour, for service in the tent of meeting.