Esther 7:9

Harbonah knew this either by his own observation, or by the information of some of his brethren, who were lately sent to Haman's house, Esther 6:14, where they might easily see it, or at least hear of it. And this he said, either out of a distaste which he had taken against Haman for his great insolency and barbarous cruelty; or in compliance with the king's inclinations, and the queen's desires. Had spoken good for the king, even to the saving of the king's life, Esther 2:21, and therefore deserved a better requital than this even from Haman, if he had not basely preferred the satisfaction of his own revenge before the preservation of the king's life.