The collective body of organized ecclesiastical ranks, in successive order, one above another. The pyramidal structure consists of a hierarch, the as the head of the church, in subordination to whom are the episcopacy of METROPOLITANS, ARCHBISHOPS, and as well as the presbytery of protopriests (see HEGUMENOS), PRIESTS, and MONKS. Nowadays, they can perform the in the absence of a priest.

The hierarchy also includes the of ARCHDEACONS, DEACONS, SUBDEACONS, and READERS, whose members, although originally intended to “serve tables” (Acts 6:2), soon developed into a definite rank performing an indispensable task in the and other services.

Prayers on behalf of the hierarchy are offered as part of the greater in the course of the celebration of the Liturgy.