To start hubris means excessive pride. In Greek tragedy that usually affects people other than the main character. The second paragraph is a warning given by Teiresias who is a minor goddess known for her ability to prophecy. She is warning Creon (but the warning comes too late) that by trying to forbid the burial of Antigone's brother, he has over stepped the power of his earthly being. His pride will lead him to places that can only lead to angering the gods which will lead to his downfall. I take that set of lines to show what his hubris is.
