Esther 9:13 - Coke's Commentary on the Holy Bible

Let Haman's ten sons be hanged upon the gallows— it is not unlikely that many might be enraged at Haman's death, and his sons in particular might set themselves at the head of those who were bold enough to attempt the destruction of the Jews at Shushan, being resolved to revenge their father's death, though in so doing they were sure to meet their own. This seems to suggest one reason why Esther was so solicitous to have their dead bodies hung on the gallows, because they had shewn more malice and indignation against the Jews, and, on the day when the cruel edict came to take place, had made more desperate attacks upon them, than any others; though the reason of state, in this severity, might be, to expose the family to greater infamy, and to deter other counsellors at any time from abusing the king with false representations: for though the Jews suffered none to hang on the tree, as they called the gallows, longer than till the evening of the day whereon they were executed, yet other nations let them hang till they were consumed, (as appears from the history of the Gibeonites, 2 Samuel 21:9.) or devoured by crows, vultures, or other ravenous creatures. See Patrick and Poole.