mystery play

plural mystery plays

1. performing artsA medieval dramatic performance depicting events from Christian scriptures, especially events from the life of Jesus Christ.
2. A similar play depicting events from the life of other gods or goddesses.

   We also entered into the mystery plays of Demeter and Persephone, of Psyche and Eros, of Isis and Osiris[.]

   1993, Jean Houston, Public Like a Frog: Entering the Lives of Three Great Americans, page xix

   1 more example

   His [Osiris'] sufferings, his death and his resurrection were enacted year by year in a great mystery-play at Abydos.

   1920, Edward Carpenter, Pagan and Christian Creeds, New York: Harcourt, Brace and Co., published 1921, page 22