Esther 5:14; Esther 7:9

Esther 5:14

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.

Esther 7:9

9 Then Harbonah, one of the eunuchs who were before the king said, "Behold indeed, the gallows standing at Haman's house fifty cubits high, which Haman made for Mordecai who spoke good on behalf of the king!" And the king said, "Hang him on it."