Article 31: The Ministers, Elders, and Deacons.
We believe that the ministers of God’s Word, and the elders and deacons, ought to be chosen to their respective offices by a lawful election by the church, with calling upon the name of the Lord, and in that order which the Word of God teacheth. Therefore every one must take heed not to intrude himself by indecent means, but is bound to wait till it shall please God to call him, that he may have testimony of his calling and be certain and assured that it is of the Lord. 
As for the ministers of God’s Word, they have equally the same power and authority wheresoever they are, as they are all ministers of Christ, the only universal Bishop, and the only Head of the church. Moreover, that this holy ordinance of God may not be violated or slighted, we say that every one ought to esteem the ministers of God’s Word and the elders of the church very highly for their work’s sake, and be at peace with them without murmuring, strife, or contention, as much as possible.