In line 35, the priest says that the Thebans know that Oedipus is mot an immortal god.
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The Thebans regard Oedipus positively because he is their king and because he saved them from the curse of the Sphinx. He has been a good king and is trying now to solve the riddle of who killed King Laius. However, he is not a god and is not revered as such.