Then Judah said to Er’s brother Onan, “Go and marry Tamar, as our law requires of the brother of a man who has died. You must produce an heir for your brother.”
“But if the man refuses to marry his brother’s widow, she must go to the town gate and say to the elders assembled there, ‘My husband’s brother refuses to preserve his brother’s name in Israel—he refuses to fulfill the duties of a brother-in-law by marrying me.’
the widow must walk over to him in the presence of the elders, pull his sandal from his foot, and spit in his face. Then she must declare, ‘This is what happens to a man who refuses to provide his brother with children.’
“May the Lord bless him!” Naomi told her daughter-in-law. “He is showing his kindness to us as well as to your dead husband. That man is one of our closest relatives, one of our family redeemers.”
Stay here tonight, and in the morning I will talk to him. If he is willing to redeem you, very well. Let him marry you. But if he is not willing, then as surely as the Lord lives, I will redeem you myself! Now lie down here until morning.”