At the second banquet of Queen in Persia who prevented an anti-Jewish pogrom More, the queen finally makes her request to the king – to save herself and her people from death. She also reveals Haman as the enemy and Haman is hanged on the gallows that he had made for Mordecai.
The tension has been building over the last few chapters. When Esther first appears before the king unbidden, he asks her what she desires and promises to grant her request, even up to half of his kingdom (5:3). He says the same thing at her first banquet (5:6). Now, at the second banquet, he asks for her request for the third time (7:2) and Esther finally complies. Having hidden her identity as a Jew, in obedience to Mordecai’s instruction (2:10), Esther now reveals both her own identity and that of her adversary: “A foe and enemy, this wicked Haman!” (7:6).
Esther’s courage and Wisdom encompasses the qualities of experience, knowledge, and good judgment. The Old Testament book of Proverbs, which sometimes invokes a Woman as the personification of Wisdom, is a collection of aphorisms and moral teachings. Along with other biblical passages, it teaches, "The fear of the... More are on full display in this chapter. She speaks the truth about herself while wisely refraining from accusing the king of participating in Haman’s murderous plot. “For we have been sold, I and my people, to be destroyed, to be killed, and to be annihilated” (7:4). It was Persian king and husband of Queen Esther More himself who gave Haman permission to issue the edict of destruction (3:11), but Esther wisely places all the blame on Haman and calls on the king to act as a gracious benefactor.
The chapter ends with a scene of poetic justice, as Haman is hung on the ridiculously tall gallows (75 feet high!) that he had constructed to hang Mordecai. Haman, in other words, is “hoist by his own petard.”