Then Boaz said, “The day you buy the field from the hand of Naomi, you also acquire Ruth the Moabite, the widow of the dead, in order to perpetuate the name of the dead in his inheritance.”
and they asked him a question, saying, “Teacher, Moses wrote for us that if a man’s brother dies, having a wife but no children, the man must take the widow and raise up offspring for his brother.
And if the man does not wish to take his brother’s wife, then his brother’s wife shall go up to the gate to the elders and say, ‘My husband’s brother refuses to perpetuate his brother’s name in Israel; he will not perform the duty of a husband’s brother to me.’