King Oedipus.

What is Jocasta'view of the integrity of the gods? How do you know this?

At one point during Oedipus' encounter with Creon,they fling these words at each other:
"'I must rule'" (195).
"'Not if you rule unjustly'" (195).
What does this mean in terms of theme (see pretest focus)?

The big question is whether Oedipus is guilty if he did not know. Describe how he comes to his epiphany -- include his denials.

In what ways has the role of the chorus changed?

Jocasta is praying to the gods, pleading them to let Oedipus live. She believes that if she does this and shows her will to do things for them they will let him live. She also thinks that the talk about Oedipus and his prophecy is not true. That the gods have "lied" and it will not become true either. According to her it is wrong. She also wants to think their is no way he could be her son because her son was killed as an infant. In this, I believe Jocasta respects what the gods have to say, but that she does not believe in the prophecy they have made proclaimed to them.
When O and Creon get into it you find that O has a temper issue. He ends up telling Creon he wants him dead. In this fight you find that Creon does not want Oedipus ruling any longer, he believes it is not good for Thebes anymore. He does, however, say he wants to rule. He is not planning against Oedipus in this he was just telling him of his opinion on his kingship. Creon is just worried for the city that Oedipus may be ruling unfairly and causing many consequences later on.
Oedipus' epiphany would be when he starts to grasp that he may be Laius' killer. When Jocasta is telling him about how Laius died Oedipus began to think of an incident where he killed someone in a rash act. This brings great stress and worry over him. Oedipus asked questions like where did this happen and how and to his unbelief it fit his story perfectly. He found he was guilty and believed that even if he was not aware of it he still killed him. He was guilty. This even leads to worse things. Forming the beginning of the end of Oedipus and the worst realization you could think of (fulfillment of prophecy). He then later finds that Polybus and Merope are not his parents. Bringing to the conclusion that through the entire story he found that Laius was his father. Meaning he killed him and married Jocasta, his mother. With the prophecy fulfilled life becomes a downward spiral in no time. They all realize this and Oedipus finds his wife/mother hung by her own hands and he gouged his eyes out.
The role of the chorus seems to become more upfront with things. They voice opinions and say all that has happened not in a bad way, but in one that is full of agony and sadness through the fulfillment of the prophecy.