‏ Esther 5:14

14Then ahis wife Zeresh and all his friends said to him, b“Let a gallows
Or stake; twice in this verse
fifty cubits
A  cubit was about 18 inches or 45 centimeters
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.

Copyright information for ESV