query: What is the role of a bishop?
passage: Bishop in the Catholic Church
In the Catholic Church, a bishop is an ordained minister who holds the fullness of the sacrament of holy orders and is responsible for teaching doctrine,[1] governing Catholics in his jurisdiction,[2] sanctifying the world[3] and representing the Church.[4][5] Catholics trace the origins of the office of bishop to the apostles, who it is believed were endowed with a special charism by the Holy Spirit at Pentecost.[6] Catholics believe this special charism has been transmitted through an unbroken succession of bishops by the laying on of hands in the sacrament of holy orders.[7]
passage: Hierarchy of the Catholic Church
The bishops, who possess the fullness of orders, and therefore the fullness of both priesthood and diaconate, are as a body (the College of Bishops) considered the successors of the Apostles[15][16] and are "constituted Pastors in the Church, to be the teachers of doctrine, the priests of sacred worship and the ministers of governance"[17] and "represent the Church."[18] In the year 2012, there were 5,133 Catholic bishops;[19] at the end of 2014, there were 5,237 Catholic bishops.[20] The Pope himself is a bishop (the bishop of Rome) and traditionally uses the title "Venerable Brother" when writing formally to another bishop.