So Mordecai went and did all that Esther had instructed him.
So strictly did the laws of Persia confine the wives, especially the king's wives, that it was not possible for Mordecai to have a conference with Esther about this important affair, but divers messages are here carried between them by Hatach, whom the king had appointed to attend her, and it seems he was one she could confide in. I.
Commenting on Esther 4:5-17
Est 4:17 And Mordochai went his way, i.e., from the place before the court of the king, to do what the queen had commanded him to do. Esther’s Gracious Reception by the King. Haman’s Rage against Mordochai - Est 5:1-14 On the third day Esther betook herself in her royal apparel to the inner court of the palace, and was so kindly received by the...