That which is restricted is that which is performed by any minister of the church by reason of his calling. The ministers of the church are the people whom God has placed in authority in the church. No one may be placed in authority in the church unless legitimately called. No one may be forced into ecclesiastical office. Marriage is not to be forbidden to the ministers.
Ministers are either extraordinary or ordinary.
The extraordinary ones are those men whom God raises up either for establishing a new regime in the church, or for restoring the old when it had broken down. Such, under the Old Testament, were the prophets. The marks of the extraordinary minister were extraordinary gifts. Such were the gifts of prophecy, tongues, and miracles. These extraordinary gifts formerly abounded whenever the will of God or the need of the church required them, and after they had been taken away, the ordinary ministry followed.