From the "OD Book" page 54-58 http://www.watchtower.cc/ODBook.pdf
MINISTERIAL SERVANTS RENDER VALUABLE SERVICE
To the congregation at Philippi, the apostle Paul wrote: "Paul and Timothy, slaves of Christ Jesus, to all the holy ones in union with Christ Jesus who are in Philippi, along with overseers and ministerial servants." (Phil. 1:1) Note that in his salutation, he made mention of the ministerial servants. These men evidently fulfilled an important role in assisting the elders in the congregation back then. The same is true in our time. Ministerial servants render a number of services that help the overseers and that contribute to the good order of the congregation.
Have you become acquainted with the ministerial servants in your congregation? Are you aware of the many fine services they perform for your benefit and for the benefit of the entire congregation? The apostle specifically mentions them and states: "The men who minister in a fine manner are acquiring for themselves a fine standing and great freeness of speech in the faith in connection with Christ Jesus."?1 Tim. 3:13.
SCRIPTURAL REQUIREMENTS FOR MINISTERIAL SERVANTS
Ministerial servants are expected to lead a wholesome Christian life, be responsible men, and give proof that they are able to care for assignments properly. This becomes obvious when we consider what Paul had to say in his letter to Timothy about the qualifications of ministerial servants:
"Ministerial servants should likewise be serious, not doubletongued, not giving themselves to a lot of wine, not greedy of dishonest gain, holding the sacred secret of the faith with a clean conscience. Also, let these be tested as to fitness first, then let them serve as ministers, as they are free from accusation. Let ministerial servants be husbands of one wife, presiding in a fine manner over children and their own households. For the men who minister in a fine manner are acquiring for themselves a fine standing and great free-ness of speech in the faith in connection with Christ Jesus."? Tim. 3:8-10,12,13.
The work of ministerial servants generally involves nonteaching responsibilities. By their hard work and exemplary Christian life, they not only perform vital services for the congregation but also set an example to be imitated by others.?1Tim. 4:11,12.
The specific Scriptural requirements for ministerial servants mentioned by Paul in his first letter to Timothy indicate that a high standard is set for men who are used in this capacity. Holding to such a standard serves to protect the congregation from any legitimate accusation as to the kind of men to whom it entrusts special responsibilities. Whether younger or older in years, ministerial servants are expected to be active in the ministry each month, setting a fine example. They should be exemplary in their dress, grooming, speech, attitude, and conduct. Such a pattern of living with soundness of mind gains the respect of others and reflects the seriousness with which ministerial servants view their relationship with Jehovah and their privileges of service in the congregation.?Titus 2:2, 6-8.
These are men who have been "tested as to fitness." Even before receiving their appointment, they proved to be truly dedicated men, whose faith has been made manifest in carrying on zealous Kingdom service and in helping others to be made firm in the faith. In their response to the good news, they have demonstrated that they put Kingdom interests first in their life and are reaching out for whatever service privileges may be open to them. They are indeed examples for others in the congregation to imitate. ?1 Tim.3:10.