 These clerical ranks are subdeacon, reader and altar server (also known as taper-bearer).Some churches have a separate service for the blessing of a cantor.Ordination of a bishop, priest, deacon or subdeacon must be conferred during the Divine Liturgy (Eucharist)—though in some churches it is permitted to ordain up through deacon during the Liturgy of the Presanctified Gifts—and no more than a single individual can be ordained to the same rank in any one service.