Many of the elders and apostles of the first century had an earthly vocation and didn't receive a regular wage, although Scripture does indicate that those who work full time for the church should be paid. But we have turned church into a corporation with a staff of people who need salaries, from the pastor to the secretary to the gardener, accountant, janitor, etc. This is not what God had in mind. In fact, when a church functions as it should, a professional clergy becomes unnecessary. A building is unnecessary. And therefore support of both by Christians becomes unnecessary and only a full time evangelist or missionary would need to be supported. Imagine how much good Christians could do if they gave to the poor and needy instead of to a new building fund or to support a pastor?
(Taken from Pagan Christianity by Frank Viola and George Barna)