When the services of the churches were organized during the time of the apostles, there were only bishops for cities where a sizable group of Christians resided. As Christianity spread throughout a region, the Bishop would ordain priests to help with serving the smaller communities in the area of his jurisdiction. Thus the Bishop is the designated shepherd of the city and the region. The term ‘Shepherd’ is reserved only for the Bishop. Where there is more than one priest in any parish church, the Bishop elevates one of them to the rank of Hegumen who would be responsible for coordination of services in that church.