What prompts Oedipus to spare Creon’s life at the end?

At the end of "Oedipus Rex," Oedipus spares Creon's life primarily due to the pleas of the chorus. The chorus, representing the voice of reason and the citizens of Thebes, urges Oedipus to consider the consequences of his actions and to act with a degree of wisdom and responsibility. They highlight the importance of stability and peace in the city, prompting Oedipus to reflect on his own situation and the implications of executing Creon. Their intervention provides a powerful reminder of Oedipus's duties as a leader, which influences his decision to spare Creon's life, despite the turmoil he is experiencing personally. This moment underscores the tension between personal grief and public duty, making the chorus's role pivotal in guiding Oedipus toward mercy.