Holy orders is the sacrament in which men are ordained to apostolic ministries. The degrees of ordination are as follows:
- Lector; his office is to read aloud the lessons of the Old and New Testament, which belong to the divine office, and to instruct the ignorant in the rudiments of the Christian religion
- Exorcist; to him is given power to exorcise possessed persons
- Acolyte; his office is to assist the deacon and subdeacon at the altar; to carry the lights, to prepare the wine and water for consecration, and attend to the divine mysteries
- Subdeacon; he serves the deacon; prepares the altar, the chalice, the bread, and the wine; he reads the epistle aloud at high Mass
- Deacon; his office is immediately to assist the bishop or priest at high Mass; and the administration of the sacraments. He reads the Gospel aloud at [Solemn] High Mass; he may administer baptism, and preach the Gospel, by commission.
- Priesthood, which has two degrees of power and dignity: that of bishops, and that of priests. The office of a priest is to consecrate and offer the sacrifice of the Body and Blood of Christ, under the forms of bread and wine; to administer all the sacraments, except confirmation and holy orders; to preach the Gospel, to bless the people, and to conduct them in the way to life eternal; as also to bless such things as are not reserved to the benediction of the bishop. The bishop, when he ordains a priest, anoints his hands with oil; he gives him the paten with bread upon it, and a chalice with wine, with power to offer sacrifice for the living and the dead; then he lays his hands upon him and says: “Receive the Holy Ghost, whose sins, etc.,” and performs several other ceremonies.