A person may be consecrated for a specific role within a religious hierarchy, or a person may consecrate his or her life in an act of devotion. In particular, the ordination of a bishop is often called a consecration. In churches that follow the doctrine of apostolic succession (the historical episcopate), the bishops who consecrate a new bishop are known as the consecrators and form an unbroken line of succession back to the Apostles. Those who take the vows of religious life are said to be living a "consecrated life".