Esther 2:14; Esther 5:14

14 In the evening she would go in and in the morning she would return to the second harem , to the custody of Shaashgaz, the king's eunuch who was in charge of the concubines. She would not again go in to the king unless the king delighted in her and she was summoned by name.

14 Then Zeresh his wife and all his friends said to him, "Have a gallows fifty cubits high made and in the morning ask the king to have Mordecai hanged on it; then go joyfully with the king to the banquet." And the advice pleased Haman, so he had the gallows made.