Luke 3:23

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

2 Corinthians 10:3-4

For though we walk in the flesh, we war not after the flesh:

Ephesians 6:10-18

Finally, brethren, be strong in the Lord, and in the power of his might.

1 Timothy 1:18

This commandment, son Timothy, I give thee, according to the prophecies which were before delivered concerning thee, that by them thou mightest war a good warfare;

1 Timothy 3:1

IT is a true saying, If a man seeks the office of a bishop, he desireth a laudable employment.

1 Timothy 3:6

Not a new convert, lest he be puffed up, and fall into the devil's crime.

Treasury of Scripture Knowledge

Summary

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

Bible References

Enter

2 Corinthians 10:3
For though we walk in the flesh, we war not after the flesh:
Ephesians 6:10
Finally, brethren, be strong in the Lord, and in the power of his might.
1 Timothy 1:18
This commandment, son Timothy, I give thee, according to the prophecies which were before delivered concerning thee, that by them thou mightest war a good warfare;

To do

1 Timothy 3:1
IT is a true saying, If a man seeks the office of a bishop, he desireth a laudable employment.