1 Chronicles 23:27

For by the last words of David the sons of Levi were numbered from twenty years old and upward.

1 Chronicles 23:24

These were the sons of Levi according to their fathers’ households, even the heads of the fathers’ households of those of them who were counted, in the number of names by their census, doing the work for the service of the house of the Lord, from twenty years old and upward.

2 Samuel 23:1

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

1 Chronicles 23:3

The Levites were numbered from thirty years old and upward, and their number by census of men was 38,000.

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
The Levites were numbered from thirty years old and upward, and their number by census of men was 38,000.
2 Samuel 23:1
Now these are the last words of David.
David the son of Jesse declares,
The man who was raised on high declares,
The anointed of the God of Jacob,
And the sweet psalmist of Israel,
Psalm 72:20
The prayers of David the son of Jesse are ended.

General references

Numbers 4:35
from thirty years and upward even to fifty years old, everyone who entered the service for work in the tent of meeting.