Priests and deacons are a Bishop's delegates for certain purposes. A priest may have charge of a "parish" or subdivision of a diocese, and is competent to celebrate the Eucharist, to bless, to baptize, and to absolve. He is also authorized to preach, and to give instruction in Christian doctrine. He may not confirm or ordain apart from the Bishop, though he may co-operate with the latter in ordinations to the priesthood. He is ordained to his ministry by the Bishop acting in conjunction with certain representatives of the priesthood who take part with him in the laying on of hands. Deacons are subordinate ministers appointed to assist parish priests in the work of parochial visiting and also, within certain limits, in the conduct of Divine worship and the administration of the sacraments. They may read parts of the service, but have no authority to bless or to absolve. They may preach by express and specific license from the Bishop. They may not celebrate the Eucharist, but may assist the priest who does so by reading the Gospel and administering the chalice. They are ordained to their office by the Bishop, and in most cases, though not invariably, proceed subsequently to the priesthood. [Footnote: In the absence of a Bishop or priest, a deacon is competent to baptize. In the absence of any of the clergy Baptism may also, in cases of urgency, be administered by a layman, and in the absence of a man, by a woman.] The principles which underlie this system of Catholic order in the Church are important. The devolution of authority to minister through the episcopate safeguards the continuity of the Church's corporate life and tradition, and secures that ministerial functions shall be exercised in the name and by the authority of the Christian Society as a whole. Moreover through the ordered succession of the Bishops the tradition of ministerial authority is carried back certainly to sub- apostolic, and perhaps also actually to apostolic, times: it represents in principle Christ's commission to His Apostles--"As the Father hath sent Me, even so send I you."