Esther 7:9

Then Harbonah, one of the eunuchs attending the king, said: “There is a gallows fifty cubits high at Haman’s house. He had it built for Mordecai, who gave the report that saved the king.” “Hang him on it!” declared the king.

Note 50 cubits is approximately 75 feet or 22.9 meters high.

And Harbonah, one of the chamberlains, said before the king, Behold also, the gallows fifty cubits high, which Haman had made for Mordecai, who had spoken good for the king, standeth in the house of Haman. Then the king said, Hang him thereon.

Note gallows: Heb. tree

Then Harbonah, one of the eunuchs who were with the king, said, “Behold, the gallows fifty cubits high, which Haman has made for Mordecai, who spoke good for the king, is standing at Haman’s house.” The king said, “Hang him on it!”

Note A cubit is the length from the tip of the middle finger to the elbow on a man’s arm, or about 18 inches or 46 centimeters.

Then said Harbonah, one of the chamberlains that were before the king, Behold also, the gallows fifty cubits high, which Haman hath made for Mordecai, who spake good for the king, standeth in the house of Haman. And the king said, Hang him thereon.