New Defender's Study Bible Notes
25:9 spit in his face. Even if the brother-in-law was married, it was then considered acceptable for a man to have more than one wife. It was also considered almost tragic for a man to die without an heir to carry on his name. The Levirate marriage was the accepted way of giving him an appropriate heir, and for a brother to refuse to take on this responsibility was considered shameful, warranting this display of contempt by the widow.