It was Memucan's advice to the king to make an example of Vashti, so that in future no woman should dare refuse obedience to her husband. Daniel-Memucan had had unpleasant experiences in his conjugal life. He had married a wealthy Persian lady, who insisted upon speaking to him in her own language exclusively. Besides, personal antipathy existed between Daniel and Vashti.
He had in a measure been the cause of her refusal to appear before the king and his princes. Vashti hated Daniel, because it was he who had prophesied his death to her father, and the extinction of his dynasty. She could not endure his sight, wherefore she would not show herself to the court in his presence. Also, it was Daniel who, by pronouncing the Name of God, had caused the beauty of Vashti to vanish, and her face to be marred.
In consequence of all this, Daniel advised, not only that Vashti should be cast off, but that she should be made harmless forever by the hangman's hand. His advice was endorsed by his colleagues, and approved by the king. That the king might not delay execution of the death sentence, and Daniel himself thus incur danger to his own life, he made Ahasuerus swear the most solemn oath known to the Persians, that it would be carried out forthwith.
At the same time a royal edict was promulgated, making it the duty of wives to obey their husbands. With special reference to Daniel's domestic difficulties, it was specified that the wife must speak the language of her lord and master.