The Ordo Rachelis (Play of Rachel), Interfectio Puerorum (Murder of the Children), or Ludus Innocentium (Play of the Innocents) is a medieval dramatic tradition consisting in four plays and based on the Massacre of the Innocents, an event recorded in the Gospel of Matthew, and on the prophecy recorded in the Book of Jeremiah: "A voice was heard in Ramah, lamentation, and bitter weeping; Rahel weeping for her children refused to be comforted for her children, because they were not" (31:15, KJV). The prophecy, which Matthew believed to be fulfilled when Herod the Great ordered the slaughter of all boys under two in Bethlehem, looks backwards to Rachel, the matriarch of the Hebrews, and towards her lamentation over the death of her children, the Hebrew children, in the massacre.