Esther 5:13

Nevertheless Haman restrained himself, and went home. There, he sent and called for his friends and Zeresh his wife.

Haman recounted to them the glory of his riches, the multitude of his children, all the things in which the king had promoted him, and how he had advanced him above the princes and servants of the king.

Haman also said, “Yes, Esther the queen let no man come in with the king to the banquet that she had prepared but myself; and tomorrow I am also invited by her together with the king.

Then Zeresh his wife and all his friends said to him, “Let a gallows be made fifty cubits high, and in the morning speak to the king about hanging Mordecai on it. Then go in merrily with the king to the banquet.” This pleased Haman, so he had the gallows made.