Esther 5:13-14

Yet all this does not satisfy me, as long as I see Mordecai the Jew sitting at the king’s gate.” Then Zeresh his wife and all his friends said to him, “Let them set up a gallows 50 cubits high, and in the morning ask the king to have Mordecai hanged on it. Then go happily with the king to the banquet.” This idea delighted Haman and he ordered the gallows to be built.