Numbers 8:24

This regarding the Levites from twenty-five years old and upward, they shall go in to serve in the host of the tabernacle of the testimony.

Numbers 4:3

from thirty years old and upward until fifty years old, all that enter into the host, to do work in the tabernacle of the testimony.

1 Chronicles 23:3

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

Numbers 4:23

from thirty years old and upward until fifty years old shalt thou number them, all that enter in to the host to do work in the tabernacle of the testimony.

1 Chronicles 23:24-27

These are the sons of Levi after the houses of their fathers, even the chief of the fathers, as they were counted by number of names by their polls, that did work in the ministry of the house of the LORD, from the age of twenty years and upward.

1 Chronicles 28:12-13

and the pattern of all that he had received by the Spirit of the courts of the house of the LORD and of all the chambers round about, of the treasuries of the house of God and of the treasuries of the holy things;

1 Corinthians 9:7

Who serves as a soldier at his own expense? Who plants a vineyard and does not eat of its fruit? or who feeds a flock and does not eat of the milk of the flock?

2 Corinthians 10:4

(For the weapons of our warfare are not carnal, but mighty through God for the destruction of strong holds),

1 Timothy 1:18

This charge I commit unto thee, son Timothy, so that according to past prophecies regarding thee, that thou by them might war a good warfare;

1 Timothy 6:12

Fight the good fight of faith, lay hold on eternal life, unto which thou art also called, having made a good profession before many witnesses.

2 Timothy 2:3-5

Thou, therefore, work hard as a good soldier of Jesus Christ.

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 until fifty years old, all that enter into the host, to do work in the tabernacle of the testimony.
1 Chronicles 23:24
These are the sons of Levi after the houses of their fathers, even the chief of the fathers, as they were counted by number of names by their polls, that did work in the ministry of the house of the LORD, from the age of twenty years and upward.
1 Chronicles 23:3
were numbered from the age of thirty years and upward; and their number by their polls, man by man, was thirty-eight thousand.
1 Chronicles 28:12
and the pattern of all that he had received by the Spirit of the courts of the house of the LORD and of all the chambers round about, of the treasuries of the house of God and of the treasuries of the holy things;

Wait upon

1 Corinthians 9:7
Who serves as a soldier at his own expense? Who plants a vineyard and does not eat of its fruit? or who feeds a flock and does not eat of the milk of the flock?
2 Corinthians 10:4
(For the weapons of our warfare are not carnal, but mighty through God for the destruction of strong holds),
1 Timothy 1:18
This charge I commit unto thee, son Timothy, so that according to past prophecies regarding thee, that thou by them might war a good warfare;
1 Timothy 6:12
Fight the good fight of faith, lay hold on eternal life, unto which thou art also called, having made a good profession before many witnesses.
2 Timothy 2:3
Thou, therefore, work hard as a good soldier of Jesus Christ.

General references

Numbers 4:35
from thirty years old and upward even unto fifty years old, all that enter into the host, to minister in the tabernacle of the testimony.