From birth, a prophecy existed that he would kill his father and marries his mother, and so his downfall seems inevitable. When Oedipus discovers his parents are not who they seem to be and later discovers the prophecy, in a similar way to which Laius tried to manipulate fate by sending Oedipus away, Oedipus also tries to change his destiny, by leaving Corinth "At this I fled away, putting the stars between me and Corinth, never to see home again. Ironically it is when he I sleazing Corinth that he meets Laius and murders him. This reflects the beliefs of the ancient Greeks that changing fate was futile and fraught with danger, and this is further exposed by comments the chorus make towards the end "and let no man be called happy until the day he carries his happiness to the grave in peace."
The role of fate and destiny, and the impact of the prophecy is further seen when the reward for the person who destroys the pestilence brought on by the riddling sphinx is Jocasta, Laius's wife and Oedipus's mothers, hand in