Oedipus Rex unconditional (Laius "will" have a son who will kill him). Both Aeschylus and Euripides write plays in which the oracle is conditional; Sophocles ... chooses to make Laius's oracle unconditional and thus removes culpability for his sins from Oedipus, for he could not have done other than what he did, no matter what action he took. This interpretation is supported by Jocasta's repetition of the oracle at lines 854–55: "Loxias declared that the king should be killed by/ his own son." In the Greek, Jocasta uses the verb "chrênai": "to be fated, necessary." This iteration of the oracle seems to
Oedipus Rex childhood. … he can no longer ignore a feeling of uncertainty about his parentage. However, after consulting the Oracle this uncertainty disappears, strangely enough, and is replaced by a totally unjustified certainty that he is the son of Merope and Polybus. We have said that this irrational behaviour - his hamartia in Aristotle's sense - is due to the repression of a whole series of thoughts in his consciousness, in fact everything that referred to his earlier doubts about his parentage. The exploration of this theme in "Oedipus Rex" is paralleled by the examination of the conflict between the individual