A particular church, gathered and completely organized according to the mind of Christ, consists of officers and members; and the officers appointed by Christ to be chosen and set apart by the church (so called and gathered), for the peculiar administration of ordinances, and execution of power or duty, which he entrusts them with, or calls them to, to be continued to the end of the world, are bishops or elders, and deacons. (1689 London Baptist Confession Of Faith)