Syro-Malabar in the context of "Saint Thomas Christians"

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, governing Catholics in his jurisdiction, sanctifying the world and representing the church. Catholics trace the origins of the office of bishop to the apostles, who it is believed were endowed with a special charism and office by the Holy Spirit at Pentecost. Catholics believe this special charism and office has been transmitted through an unbroken succession of bishops by the laying on of hands in the sacrament of holy orders.

Diocesan bishops—known as eparchial bishops in the Eastern Catholic Churches—are assigned to govern local regions within the Catholic Church known as dioceses in the Latin Church and eparchies in the Eastern Churches. Bishops are collectively known as the College of Bishops and can hold such additional titles as archbishop, cardinal, patriarch, or pope. As of 2020, there were approximately 5,600 living bishops total in the Latin and Eastern churches of the Catholic Church.

Chrismation consists of the sacrament or mystery in the initiation rites of Eastern Christianity as practiced in the Eastern Orthodox Church, Oriental Orthodox Churches, Assyrian Church of the East and Eastern Catholic churches. The sacrament is more commonly known in Western Christianity as confirmation, although some languages such as Italian, Maltese and Portuguese normally use the terms cresima, griżma (tal-isqof) and crisma ("chrismation") rather than confermazione, konferma or confirmação, respectively ("confirmation").

The term chrismation comes about because it involves anointing the recipient of the sacrament with chrism (holy oil), which according to eastern Christian belief, the Apostles sanctified and introduced for all priests to use as a replacement for the laying on of hands by the Apostles.