John Gill Commentary Esther 6:4

"And the king said, Who is in the court? Now Haman was come into the outward court of the king`s house, to speak unto the king to hang Mordecai on the gallows that he had prepared for him." — Esther 6:4 (ASV)

And the king said, who is in the court ?
&c.] Being in haste to confer some honour on Mordecai for what he had done:

now Haman was come into the outward court of the king's house ;
though it was early in the morning, being eager to get to the speech of the king before he was engaged in any business, to obtain a grant from him:

to hang Mordecai on the gallows that he had prepared for him ;
of which he made no doubt of having, and therefore had prepared for it.