Most Greeks probably believed in prophecy, but they were also aware it could be unreliable, and that humans could make mistakes in interpreting the god’s message
The difficulty of using prophecy is apparent in Oedipus the King, where Oedipus’ fate is foretold by 2 oracles, one to his parents, and the other to him
The prophecy given to Jocasta and Laius comes out of the blue (711-14;744-8)
The one for Oedipus (788-93; 869-75) answers a question he didn’t ask (unlike real life, where oracles would answer particular questions)
We aren’t told why the gods inflicted this fate on Oedipus, and it is unclear whether the prophecy is couched as a warning that could be avoided (‘do not have a child, or he will kill you’) or simply a prediction
Jocasta questions the truth of this oracle, saying that it came from the servants of Apollo rather than the god himself (711-12; 785-6)
Mortals cannot tell which prophesies are truly inspired by a god
The trustworthiness of prophets is explored through the figure of Tiresias
In both plays, the audience recognise that Tiresias provides wise advice, but the characters discover this too late
Oedipus and Pentheus accuse Tiresias of making money out of prophesying a certain way
Pentheus claims that Tiresias will make money from the new cult (257; 207-8)
Oedipus believes that he has been bribed by Creon (380-9; 432-42)
The kings may be wrong, but their fears reflect anxiety about religious authorities abusing their power
The conflict with Tiresias reflects a clash between political and religious forms of authority, and Oedipus and Pentheus overstep the mark by insulting a prophet