Fifty cubits — That it may be more conspicuous to all, and thereby be more disgraceful to Mordecai, and strike all Haman's enemies with a greater dread of despising or opposing him.
Related Commentaries of Esther 5:14
Esther 5:14
14 Then said Zeresh his wife and all his friends unto him, Let a gallowsc be made of fifty cubits high, and to morrow speak thou unto the king that Mordecai may be hanged thereon: then go thou in merrily with the king unto the banquet. And the thing pleased Haman; and he caused the gallows to be made.