Esther 2:20

2:20 Esther was still not divulging her lineage or her people, just as Mordecai had instructed her. Esther continued to do whatever Mordecai said, just as she had done when he was raising her.

Esther 9:31

9:31 to establish these days of Purim in their proper times, just as Mordecai the Jew and Queen Esther had established, and just as they had established both for themselves and their descendants, matters pertaining to fasting and lamentation.