What is the main function of the chorus in this section of the play?

The Chorus comments on the action and interacts with Creon, actively interceding with advice at a critical moment late in the play. The Chorus is comprised of the Theban elders, vital for maintaining order in the city, and Creon summons them to win their loyalty. They watch the unfolding events with sympathy and a discerning eye: they pity Creon and Antigone, but also comment critically on their faults.