The Church of the Nazarene recognizes only one order of the preaching ministry, that of elder. It also recognizes that the member of the clergy may serve the church in various capacities. (Ephesians 4:11–12) The church recognizes the following roles of service in which a district assembly may place an elder, deacon, or, as circumstances warrant, a licensed minister: pastor, evangelist, missionary, teacher, administrator, chaplain, and special service. Ministerial training and ordination are normally required, or greatly desired, to fulfill these categories as an “assigned minister.” The Sourcebook on Ordination shall provide guidelines for each category of ministry that will aid district boards in identifying the qualifications necessary for consideration to be an assigned minister. Only assigned ministers shall be voting members of the district assembly.