 He already has this promise from the king that all the Jews are going to be destroyed, but he can't even wait for that. He has to build the gallows to hang Mordecai. So he does so, goes to the banquet, and then Esther says, hey, come back tomorrow for another banquet. And it's at this banquet that she reveals herself to be one of the Jewish people. Why do you think she didn't do that at the first banquet?