Esther 6:1-3

That night the king could not sleep; so he ordered the book of the chronicles, the record of his reign, to be brought in and read to him. It was found recorded there that Mordecai had exposed Bigthana and Teresh, two of the king’s officers who guarded the doorway, who had conspired to assassinate King Xerxes. “What honor and recognition has Mordecai received for this?” the king asked. “Nothing has been done for him,” his attendants answered.