Esther 4:5

Then called Esther for Hatach, one of the king's chamberlains, whom he had appointed to attend upon her, and gave him a commandment to Mordecai, to know what it was, and why it was.

Then called Esther for Hatach, one of the king's chamberlains, whom he had appointed to attend upon her. Communication with the women in the harem is hardly ever to be obtained, and only through the medium of the keepers. The chief eunuch receives the message from the lips of the queen, conveys it to some inferior officer of the seraglio, and when the commission is executed, the subaltern communicates it to the superintendent, by whom it is delivered to the queen. This chief eunuch, usually an old man who has recommended himself by a long course of faithful service, is always appointed by the king, but it is his interest, as well as his duty, to ingratiate himself with the queen also; and, accordingly, we find Hatach rendering himself very serviceable in carrying on those private communications with Mordecai, who was thereby enabled to enlist her powerful influence.