The
subdiaconate is most probably, some say certainly not a true sacrament, but a sacramental instituted by the Church. If it cannot be repeated, this is because the Church has so wished, for she could institute a sacramental similar to a sacrament externally without thereby obliging us to hold that it imprints an indelible character on the soul of the recipient. Wernz (op. cit. infra, No. 158) says: “Since ordinations below the deaconship are most probably not true sacraments, but rather sacramentals they do not imprint the true sacramental character, hence if they are conferred validly, they give a power of order instituted solely by human law and circumscribed by its limits.”