Can someone explain this to me ?

Antigone's gender has profound effects on the meaning of her actions. Creon himself says that the need to defeat her is all the more pressing because she is a woman. The freedom of Greek women was extremely limited; the rules and strictures placed on them were great even for the ancient world. Antigone's rebellion is especially threatening because it upsets gender roles and hierarchy. By refusing to be passive, she overturns one of the fundamental rules of her culture. Ismene is Antigone's foil because she is completely cowed by the rule of men and believes that women should be subservient to them or risk incurring their wrath. Men are stronger, she says, and therefore must be obeyed. Ultimately, however, we see that she has merely bought into the problematic concepts that Creon espouses, for even when Creon realizes he may be wrong, he switches his defense, arguing that even if he were incorrect, he couldn't admit defeat to a woman, for that would upset divine law even more than backtracking on his principles. It is this fundamental untruth that Sophocles' play seeks to correct, mainly through the punishment that the Gods inflict on Creon as a result of his obtuse, misogynistic thinking.