The St. John’s Community Players present “The Shepherds’ Play, a Medieval Nativity in Verse and Song” at 6:30 p.m. Friday at St. John’s Episcopal Church, Fifth and C streets. Preserved from pre-16th century Central Europe, the free play was discovered by Rudolf Steiner and is performed in Waldorf schools throughout the world. A potluck begins at 5:30 p.m. Information: 762-8872, saintjohnsepiscopalpetaluma.org.