Tiresias is a blind prophet who serves as the voice of divine truth in Sophocles’ Oedipus the King. He appears only briefly, but his scene is the turning point of the entire play: he is the first character to directly tell Oedipus that Oedipus himself is the murderer he has been hunting. Everything that follows, the investigation, the unraveling, the self-blinding, flows from that single confrontation.
Why Oedipus Summons Tiresias
When the play opens, Thebes is being devastated by a plague. Oedipus sends his brother-in-law Creon to the oracle at Delphi, and the message comes back clear: the plague will not end until the murderer of the previous king, Laius, is found and driven from the city. Oedipus vows to track down the killer. The Chorus leader suggests consulting Tiresias, the prophet who “sees with the eyes of Lord Apollo,” and Oedipus reveals he has already sent for him.
A boy leads the old, blind prophet onstage. Oedipus begs Tiresias to reveal who killed Laius. Tiresias refuses. He says he knows the truth but wishes he did not, and he pleads to be sent home. This refusal is not evasion. Tiresias understands exactly what the truth will do to Oedipus, and he is trying to spare him.
The Accusation That Changes Everything
Oedipus does not take the refusal well. He presses harder, grows angry, and eventually accuses Tiresias of being involved in the murder himself. That accusation pushes Tiresias past his restraint. He delivers the line that cracks the play open: “I say you are the murderer of the king whose murderer you seek.”
He goes further. He tells Oedipus that the killer is living in Thebes, passing as a foreigner but truly a native-born Theban. He says the man does not know who his parents are. He predicts that this man will be revealed as both “father and brother” to the children in his house. And he warns that the man who can now see will soon walk in darkness, driven from the city blind and begging. Every one of these details turns out to be correct.
Oedipus Rejects the Truth
Oedipus responds exactly the way Tiresias feared. Rather than considering the prophecy, he constructs a conspiracy theory. He decides that Creon must have put Tiresias up to this, that the two of them are scheming to overthrow him and steal the throne. He mocks Tiresias for his blindness, asking what kind of prophet couldn’t even solve the riddle of the Sphinx. “I stopped the Sphinx,” Oedipus boasts. “With no help from the birds, the flight of my own intelligence hit the mark.”
This is the reaction of a man who has built his identity on being the smartest person in the room. Oedipus solved the riddle that no one else could solve and saved an entire city. He cannot accept that this same intelligence has a blind spot, that the one mystery he cannot crack is his own life. His anger toward Tiresias is really anger at the possibility that everything he believes about himself is wrong.
The Irony of Sight and Blindness
The confrontation between Oedipus and Tiresias is built on one of the most famous ironies in Western literature. Tiresias is physically blind but sees the truth with perfect clarity. Oedipus has functioning eyes and a brilliant mind, yet he is completely blind to the facts of his own existence: that he killed his father at a crossroads, that he married his mother, that the children he is raising are also his siblings.
When Oedipus taunts Tiresias about his blindness, Tiresias fires back with a chilling reversal. He tells Oedipus: “You with your precious eyes, you’re blind to the corruption of your life, to the house you live in, those you live with.” He predicts that darkness will soon shroud the eyes “that now can see the light.” By the end of the play, when the full truth has been laid bare, Oedipus gouges out his own eyes with the brooches from his dead wife and mother’s dress. The man who could see becomes blind. The prophet’s words land exactly as promised.
Sophocles uses this reversal to ask an uncomfortable question: is it better to see the truth and suffer, or to remain ignorant and comfortable? Tiresias, who knows the answer and carries its weight, tried to choose silence. Oedipus forced the issue.
Tiresias as a Dramatic Catalyst
Tiresias appears in only one scene, yet he sets the entire plot in motion. Before his arrival, Oedipus is a confident king conducting an investigation he expects to resolve. After Tiresias speaks, doubt has been planted. Oedipus spends the rest of the play chasing down evidence, interviewing witnesses, and pulling at threads that all lead back to himself. Every revelation confirms what Tiresias said in the first act.
This makes Tiresias function less as a character with his own arc and more as a force of truth that the protagonist collides with. He does not persuade, argue, or negotiate. He simply states what is real. The tragedy comes from the gap between the moment the truth is spoken and the moment it is finally accepted.
Tiresias in Greek Mythology
Tiresias is not an invention of Sophocles. He is a figure from the broader tradition of Greek myth, and his backstory explains both his blindness and his prophetic gift. There are two main versions of how he lost his sight, and both involve angering a goddess.
In one version, told by the poet Callimachus, the young Tiresias accidentally stumbled upon the goddess Athena bathing. Seeing a god’s true form without their permission carried a severe penalty, and Athena struck him blind on the spot. His mother, a nymph named Chariclo who was close to Athena, protested that the punishment was too harsh. Athena could not reverse the blindness, but she compensated Tiresias with prophetic sight, a long life, a staff to guide him, and the rare gift of retaining consciousness after death.
In the second and more widely known version, found in Ovid’s Metamorphoses, Tiresias lived for a time as both a man and a woman. When Zeus and Hera argued over which sex experienced more pleasure, they called on Tiresias to settle the debate. He sided with Zeus, saying women enjoyed it more. Hera, furious that he had revealed this secret, blinded him. Zeus, unable to undo another god’s punishment, granted him the gift of prophecy as compensation.
Both stories share the same core logic: Tiresias gained forbidden knowledge and paid for it with his eyes. That pattern mirrors Oedipus’s own story perfectly. Oedipus gains the knowledge of who he truly is and pays for it by destroying his own sight. Sophocles’ audience would have recognized this parallel immediately.
Tiresias in the Other Theban Plays
Tiresias also appears in Sophocles’ Antigone, which dramatizes the next generation of the cursed Theban royal family. In that play, he warns King Creon that refusing to bury the dead warrior Polynices and entombing the living Antigone has offended the gods. Creon, like Oedipus before him, rejects the prophet’s warning and accuses him of corruption. And like Oedipus, Creon suffers catastrophic consequences for ignoring the truth.
Across both plays, Tiresias serves the same function: he arrives, speaks an unwelcome truth to a powerful man, is insulted and dismissed, and is ultimately proved right. He is the character Sophocles uses to show that political power and divine knowledge operate on entirely different planes, and that when they clash, divine knowledge wins every time.