Relief for the Jews, Esther 8, OT S1:E275

Mordecai is given Haman's house, position, and an opportunity to save his people. Even though a royal decree can't be revoked, a new one can be written. The new decree, authored by Esther and Mordecai, allowed the Jews to defend and avenge themselves on their enemies. Thus, God turned their promised demise into their deliverance.