Numbers 4:35

from thirty years old and upward even unto fifty years old, every one that entered upon the service, for work in the tent of meeting:

Numbers 4:23

from thirty years old and upward until fifty years old shalt thou number them; all that enter in to wait upon the service, to do the work in the tent of meeting.

1 Chronicles 23:24

These were the sons of Levi after their fathers houses, even the heads of the fathers houses of those of them that were counted, in the number of names by their polls, who did the work for the service of the house of Jehovah, from twenty years old and upward.

Numbers 4:3

from thirty years old and upward even until fifty years old, all that enter upon the service, to do the work in the tent of meeting.

Numbers 4:30

from thirty years old and upward even unto fifty years old shalt thou number them, every one that entereth upon the service, to do the work of the tent of meeting.

Numbers 4:39

from thirty years old and upward even unto fifty years old, every one that entered upon the service, for work in the tent of meeting,

Numbers 4:43

from thirty years old and upward even unto fifty years old, every one that entered upon the service, for work in the tent of meeting,

Numbers 4:47

from thirty years old and upward even unto fifty years old, every one that entered in to do the work of service, and the work of bearing burdens in the tent of meeting,

Numbers 8:24-26

This is that which belongeth unto the Levites: from twenty and five years old and upward they shall go in to wait upon the service in the work of the tent of meeting:

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 and eight thousand.

1 Chronicles 23:26-27

and also the Levites shall no more have need to carry the tabernacle and all the vessels of it for the service thereof.

1 Chronicles 28:13

also for the courses of the priests and the Levites, and for all the work of the service of the house of Jehovah, and for all the vessels of service in the house of Jehovah;

Luke 3:23

And Jesus himself, when he began to teach , was about thirty years of age, being the son (as was supposed) of Joseph, the'son of Heli,

1 Timothy 3:6

not a novice, lest being puffed up he fall into the condemnation of the devil.

Treasury of Scripture Knowledge

Summary

From thirty years old and upward even unto fifty years old, every one that entereth into the service, for the work in the tabernacle of the congregation:

Bible References

General references

Numbers 4:3
from thirty years old and upward even until fifty years old, all that enter upon the service, to do the work in the tent of meeting.
Numbers 8:24
This is that which belongeth unto the Levites: from twenty and five years old and upward they shall go in to wait upon the service in the work of the tent of meeting:
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 and eight thousand.
1 Chronicles 28:13
also for the courses of the priests and the Levites, and for all the work of the service of the house of Jehovah, and for all the vessels of service in the house of Jehovah;
Luke 3:23
And Jesus himself, when he began to teach , was about thirty years of age, being the son (as was supposed) of Joseph, the'son of Heli,
1 Timothy 3:6
not a novice, lest being puffed up he fall into the condemnation of the devil.

American Standard Version Public Domain