Esther 2:21-23

21During those days while Mordecai was sitting at the King’s Gate, Bigthan and Teresh, two of the king’s eunuchs who guarded the entrance, became infuriated and planned to assassinate King Ahasuerus.

22When Mordecai learned of the plot, he reported it to Queen Esther, and she told the king on Mordecai’s behalf.

23When the report was investigated and verified, both men were hanged on the gallows. This event was recorded in the Historical Record in the king’s presence.