The Sacrament of Apostolic Ministry is the mission entrusted by Christ to his Apostles and continues to be exercised in the Church through the laying on of hands. This sacrament has three distinct degrees or "orders" — deacon, priest, and bishop. All three confer a permanent, sacramental character.
If you would like to know more, please visit this site created by The Diocese of Des Moines for Vocations.
Great Bible Verse... You see then that a man is justified by works, and not by faith only.