Numbers 8:24
"This is that which belongs to the Levites: from twenty-five years old and upward they shall go in to wait on the service in the work of the Tent of Meeting;
Numbers 4:3
from thirty years old and upward even until fifty years old, all who enter into the service, to do the work in the Tent of Meeting.
1 Chronicles 23:3
The Levites were numbered from thirty years old and upward: and their number by their polls, man by man, was thirty-eight thousand.
Numbers 4:23
you shall count them from thirty years old and upward until fifty years old; all who enter in to wait on the service, to do the work in the Tent of Meeting.
1 Chronicles 23:24-27
These were the sons of Levi after their fathers' houses, even the heads of ancestral houses of those who were counted individually, in the number of names by their polls, who did the work for the service of the house of the LORD, from twenty years old and upward.
1 Chronicles 28:12-13
and the pattern of all that he had by the Spirit, for the courts of the house of the LORD, and for all the surrounding rooms, for the treasuries of God's house, and for the treasuries of the dedicated things;
1 Corinthians 9:7
What soldier ever serves at his own expense? Who plants a vineyard, and does not eat of its fruit? Or who feeds a flock, and does not drink from the flock's milk?
2 Corinthians 10:4
for the weapons of our warfare are not of the flesh, but mighty in God for the tearing down of strongholds,
1 Timothy 1:18
This instruction I commit to you, my child Timothy, according to the prophecies which led the way to you, that by them you may wage the good warfare;
1 Timothy 6:12
Fight the good fight of faith. Lay hold of the eternal life to which you were called, and you confessed the good confession in the sight of many witnesses.
2 Timothy 2:3-5
You therefore must share in hardship, as a good soldier of Christ Jesus.