Esther 9:4-6

4For Mordecai had been promoted in the king’s palace, and his fame spread throughout all the provinces as he became more and more powerful.

5So the Jews went ahead on the appointed day and struck down their enemies with the sword. They killed and annihilated their enemies and did as they pleased with those who hated them.

6In the fortress of Susa itself, the Jews killed 500 men.