Esther urged her uncle to refrain from incensing Haman and furnishing him with a pretext for wreaking the hatred of Esau to Jacob upon Mordecai and his nation. Mordecai, however, was firmly convinced that Esther was destined by God to save Israel. How could her miraculous history be explained otherwise? At the very moment Esther was taken to court, he had thought: "Is it conceivable that God would force so pious a woman to wed with a heathen, were it not that she is appointed to save Israel from menacing dangers?"
Mordecai — Esther and the Patriarchs
Legends of the Jews 12:167