Plurality of Elders

Daniel Wallace:
The case for plurality of elders can be argued along four lines: biblical, historical, theological, and pragmatic. At bottom, I would say that the reason the scriptures teach multiple eldership is at least twofold: (1) mutual accountability is necessary if leaders are to avoid falling into sin; and (2) a church takes on the personality of its leaders: if there is just one leader, the church will inevitably take on that man's personality, including his quirks and faults. But if more than one person leads the church, there is the greater chance that the church will be balanced.
Entire article...