The Chrism Mass is a religious service held in certain Christian denominations, such as Roman Catholicism, Lutheranism, and Anglicanism.[1][2] It is usually celebrated each year on Maundy Thursday or on another day of Holy Week. During the ceremony, the holy oils used for sacraments and rituals are blessed or consecrated.
This service, also called a Chrism Mass, is held during Holy Week and presided over by a synodical bishop. At this unique liturgy, the blessing of oil is coupled with a renewal of vows for rostered leaders. The traditional day for this service is Maundy Thursday (when some traditions believe the first ordinations took place). In some places (especially in geographically large synods), bishops make provision for several chrism masses throughout the synod to enable all rostered leaders to participate.