Whereas a deacon meets the needs of the people, a trustee meets the needs of the property. The role of trustee varies depending on denomination and congregation. Trustees may be responsible for maintaining buildings and facilities, tracking the church’s equipment and investments, keeping insurance policies up to date, and managing funds.
What are the qualifications of elders and deacons? What does the Bible say about who is qualified to serve as an elder or deacon?
The responsibilities of a deacon are not clearly listed or outlined; they are assumed to be everything that does not include the duties of an elder or pastor, which is to preach, teach, and exhort.
There are at least three possible interpretations of the phrase husband of one wife in 1 Timothy 3:2 (ESV). 1) It could simply be saying that a polygamist is not qualified to be an elder, a deacon or a pastor. This is the most literal interpretation of the English rendering of the phrase, but seems somewhat unlikely considering that polygamy was quite rare in the time that Paul was writing. 2 ...
The word deacon simply means “servant.” Deacons are appointed church officials who minister to the more physical needs of the church, relieving the elders to attend to more spiritual ministry. Deacons are to be spiritually fit, and the qualifications of deacons are given in 1 Timothy 3:8–13. In summary, elders lead and deacons serve.
Arguing against interpreting "deacon’s wives" as "female deacons" is the fact that it would be unusual for Paul to give qualifications for deacons in verses 8-10 and 12-13, with qualifications for deaconesses in between.