'Eunuchs' in the Bible

On the seventh day, when the king’s heart was joyful with wine (in high spirits), he commanded Mehuman, Biztha, Harbona, Bigtha, Abagtha, Zethar, and Carkas, the seven eunuchs who served in the presence of King Ahasuerus [as his attendants],

But Queen Vashti refused to come at the king’s command, which was delivered [to her] by the eunuchs. So the king became extremely angry and burned with rage.

[He said,] “According to the law, what is to be done with Queen Vashti because she did not obey the command of King Ahasuerus which was conveyed by the eunuchs?”

In those days, while Mordecai was sitting at the king’s gate, Bigthan and Teresh, two of the king’s eunuchs who guarded the door, became angry and conspired to attack King Ahasuerus.