Albert Barnes Commentary Esther 8:11

"wherein the king granted the Jews that were in every city to gather themselves together, and to stand for their life, to destroy, to slay, and to cause to perish, all the power of the people and province that would assault them, [their] little ones and women, and to take the spoil of them for a prey," — Esther 8:11 (ASV)

This fresh decree allowed the Jews to stand on their defense, and to kill all who attacked them. It has been pronounced incredible that any king would thus have sanctioned civil war in all the great cities of his empire; but some even of the more skeptical critics allow that “Xerxes” might not improbably have done so.