The All Night Vigil held in parish churches on a Saturday evening, is one of the best-known features of the Russian Orthodox Church. This English translation is intended both to help the worshipper to follow the service at the Vigil for Sunday held on Saturday night and to assist the choir in chanting the service. It contains the unvarying texts and rubrics regarding the insertion of the variable parts. The parts of the priest, deacon, reader and choir are clearly indicated.