John Gill, on Esth 7:9

“And Harbona, one of the eunuchs that stood waiting on the king, said: Behold the gibbet which he hath prepared for Mardochai, who spoke for the king, standeth in Aman’s house, being fifty cubits high. And the king said to him: Hang him upon it.”

“And Harbonah, one of the chamberlains, said before the king,.... One of the seven chamberlains, see Est 1:10, his name, with Josephus (y), is Sabouchadas. Behold also, the gallows fifty cubits high, which Haman had made for Mordecai, who had spoken good for the king, standeth in the house of Haman. This man, perhaps, had seen it there, when he went with others to fetch Haman to the banquet, Est 6:14. The sin of Haman is aggravated by preparing a gallows for a man before he was accused to the king, or condemned, or had a grant for his execution, and for a man that had well deserved of the king for discovering a conspiracy against him, and whom now the king had delighted to honour: then the king said, hang him thereon; immediately, being ready prepared, the king's word was enough, being a sovereign and tyrannical prince. (y) Antiqu. l. 11. c. 6. sect. 11.”

Imported from an open dataset — not yet checked against the printed edition.