Together with baptism, the Trinitarian formula is used in other prayers, rites, liturgies, and sacraments. Baptismal liturgies in Lutheran Churches include a minor exorcism. The liturgies of the sacraments are central to the church's mission. Some pray according to standardized rituals and liturgies, while others prefer extemporaneous prayers. Confucian liturgies are alternated with Taoist liturgies and popular ritual styles. There are two devotional services every day and two liturgies every Sunday. Many of these liturgies are derived from the Anglican tradition's Book of Common Prayer. Jesuit priests from Boston College occasionally preside at the church's liturgies. He wrote a number of sermons, liturgies, and hagiographies, including a "Praising epistle for Euthymius". Both include dualistic blessing and cursing liturgies. Many liturgies, including the Roman, omit some verses in the biblical readings that they use. There is no compulsory participation in any religious liturgies. The church adopted West Syrian liturgies and practices, and the catholicate was established in 1912. The campus is known for its liturgies, retreats and spiritual talks. The metropolitan is to be commemorated in the liturgies celebrated within his province.