Esther 2:21

In those days , as Mordecai was sitting at the king’s gate , Bigthan and Teresh , two of the king’s eunuchs , who guarded the threshold , became angry and sought to lay hands on King Ahasuerus .

During the time Mordecai was sitting at the king`s gate, Bigthana and Teresh, two of the king`s officers who guarded the doorway, became angry and conspired to assassinate King Xerxes.

In those days, while Mordecai sat in the king's gate, two of the king's chamberlains, Bigthan and Teresh, of those which kept the door, were wroth, and sought to lay hand on the king Ahasuerus.