Hi class,
I think that Oedipus King deals with many topics that can be understood as timeless human struggles or qualities. If I had to mention one I would say that a recurrent theme of the text is the struggle of power, which at the end it shows to be an illusion as we discussed in class.
Even though Oedipus did everything possible to avoid his foretold destiny, he ends up being the murderer of his father and the husband of his mother.
The struggle for power to my perspective comes from the character trying his best to do what is ”good” but at the end of the play, we end up questioning the integrity and the moral compass of the main character.