David Dorsey points out that the Book of Esther is a grand chiasm centred on the honouring of Mordecai by the King. He also points out that each arm of this chiasm is itself a chiasm, the first centring on Haman’s plot and the second on the foiling of the plot.
A. King’s feast (1:1-22)
B. Esther becomes queen (2:1-18)
C. King’s life is saved (2:19-23)
D. Haman’s plot (3:1-4:3)
E. Mordecai learns of Haman’s plot and asks Esther to risk her life (4:4-17)
F. Esther’s first banquet (5:1-14)
G. The King’s insomnia and Haman honours Mordecai (6:1-14)
F’. Esther’s second banquet (7:1-10)
E’. Mordecai and Esther given Haman’s estate (8:1-2)
D’. Haman’s plot foiled (8:3-17)
C’. Jews’ lives are saved (9:1-10)
B’. Esther gains second day of deliverance for the Jews (9:11-19)
A’. Jews’ feast of Purim (9:20-10:3)