Columbia subject headings:
Church history--Primitive and early church, ca. 30-600.
Church orders, Ancient.
Clergy--Appointment, call, and election--History.
Clergy.
Didascalia apostolorum (Syriac version)
Professional socialization.
Harvard subject headings:
Princeton subject headings:
Church history--Primitive and early church, ca. 30-600.
Church orders, Ancient.
Church polity--History--Early church, ca. 30-600.
Clergy--History.
Didascalia apostolorum.
Professional socialization.