Now alone in the orchestra, the Chorus ponders deeply what Oidipous will not: Delphi, which it thinks of as the geological formation upon which stands the sanctuary to Apollo—rock that also underlies Athens and all points in between. This image may thus superimpose the steep rock on which Delphi is perched onto the living rock of the Athenian acropolis, into which is carved the skene, orchestra, and curved rows of stone benches on which the audience in the theater of Dionysos sits. The Athenian audience and the god’s holy seat at Delphi are unified by the immutable stone upon which both rest. It is this immutable substance that is called upon to communicate about that which otherwise cannot be spoken—unspeakable acts to the commission of which the rock itself is imagined to bear witness. This rock is not mute; at Delphi it speaks. To the brutality and unseemliness of Laios’s killing it has given voice. From this perspective Delphi is primal, bound to react with profound outrage to mortal transgression. [Gt-a] [Ap] [Aj] [Md]