“Holy Orders is the sacrament through which the mission entrusted by Christ to his apostles continues to be exercised in the Church until the end of time…It includes three degrees of order: episcopate, presbyterate, and diaconate” (CCC 1536). Deacons, priest and bishops are essential to the Catholic Church because we believe that they continue the work begun by the apostles.
Who Receives Holy Orders?
The Church confers the sacrament of Holy Orders only on baptized men (viri), whose suitability for the exercise of the ministry has been duly recognized. Church authority alone has the responsibility and right to call someone to receive the sacrament of Holy Orders. (CCC 1598)