Numbers 8:24

“This is what applies to the Levites: from twenty-five years old and upward they shall enter to perform service in the work of the Tent of Meeting,

Numbers 4:3

from thirty years old and upward, even to fifty years old, all who enter the service to do the work in the Tent of Meeting (tabernacle).

1 Chronicles 23:3

The Levites thirty years old and upward were counted, and their number man by man was 38,000.

Numbers 4:23

From thirty years and upward to fifty years old, you shall number them; all who enter for service to do the work in the Tent of Meeting.

1 Chronicles 23:24-27

These were the Levites by their fathers’ households, the heads of the fathers’ households of those registered, according to the number of names of the individuals who were the servants of the house of the Lord, from twenty years old and upward.

1 Chronicles 28:12-13

and the plan of all that he had in mind, for the courts of the house of the Lord, and for all the surrounding rooms, for the storerooms of the house of God and for the storerooms for the dedicated gifts and offerings;

1 Corinthians 9:7

[Consider this:] Who at any time serves as a soldier at his own expense? Who plants a vineyard and does not eat its fruit? Or who tends a flock and does not use the milk of the flock?

2 Corinthians 10:4

The weapons of our warfare are not physical [weapons of flesh and blood]. Our weapons are divinely powerful for the destruction of fortresses.

1 Timothy 1:18

This command I entrust to you, Timothy, my son, in accordance with the prophecies previously made concerning you, so that [inspired and aided] by them you may fight the good fight [in contending with false teachers],

1 Timothy 6:12

Fight the good fight of the faith [in the conflict with evil]; take hold of the eternal life to which you were called, and [for which] you made the good confession [of faith] in the presence of many witnesses.

2 Timothy 2:3-5

Take with me your share of hardship [passing through the difficulties which you are called to endure], like a good soldier of Christ Jesus.

Treasury of Scripture Knowledge

Summary

This is it that belongeth unto the Levites: from twenty and five years old and upward they shall go in to wait upon the service of the tabernacle of the congregation:

General references

Bible References

From twenty

Numbers 4:3
from thirty years old and upward, even to fifty years old, all who enter the service to do the work in the Tent of Meeting (tabernacle).
1 Chronicles 23:24
These were the Levites by their fathers’ households, the heads of the fathers’ households of those registered, according to the number of names of the individuals who were the servants of the house of the Lord, from twenty years old and upward.
1 Chronicles 23:3
The Levites thirty years old and upward were counted, and their number man by man was 38,000.
1 Chronicles 28:12
and the plan of all that he had in mind, for the courts of the house of the Lord, and for all the surrounding rooms, for the storerooms of the house of God and for the storerooms for the dedicated gifts and offerings;

Wait upon

1 Corinthians 9:7
[Consider this:] Who at any time serves as a soldier at his own expense? Who plants a vineyard and does not eat its fruit? Or who tends a flock and does not use the milk of the flock?
2 Corinthians 10:4
The weapons of our warfare are not physical [weapons of flesh and blood]. Our weapons are divinely powerful for the destruction of fortresses.
1 Timothy 1:18
This command I entrust to you, Timothy, my son, in accordance with the prophecies previously made concerning you, so that [inspired and aided] by them you may fight the good fight [in contending with false teachers],
1 Timothy 6:12
Fight the good fight of the faith [in the conflict with evil]; take hold of the eternal life to which you were called, and [for which] you made the good confession [of faith] in the presence of many witnesses.
2 Timothy 2:3
Take with me your share of hardship [passing through the difficulties which you are called to endure], like a good soldier of Christ Jesus.

General references

Numbers 4:35
from thirty years and upward even to fifty years old, everyone who enters the service to do the work in the Tent of Meeting (tabernacle);