Esther 5:14 (ESV)

14 Then his wife Zeresh and all his friends said to him, “Let a gallows fifty cubits high be made, and in the morning tell the king to have Mordecai hanged upon it. Then go joyfully with the king to the feast.” This idea pleased Haman, and he had the gallows made.

Evidently, Haman’s wife shared his cold-blooded nature. Could she also be an Amalekite?

In view of the favour that he enjoyed with the king, Haman would not have any trouble in arranging the execution of Mordecai. Haman’s wife and friends felt so convinced of this fact that they suggested that a gallows be built that very day. The gallows had to be 75 feet (about 23 metres) high, in order to make Mordecai’s death more visible and shameful.

Zeresh and Haman’s friends knew that the prospect of Mordecai’s execution would enable Haman to attend Esther’s banquet in a happy mood.

It seemed that Esther’s request would come too late to save her uncle Mordecai. However, the events of that night would prove that God provides for his people in their sleep (Psalm 127:2).