Then Judah said to Er’s brother Onan, “Your duty is to join yourself to her. Go perform your duty as a brother-in-law and provide an heir for your brother.”
“My daughters, you must go back,” Naomi answered. “Why do you want to come with me? Do you think I could have sons again to give you new husbands?
One day, his firstborn suggested to the younger, “Our father is getting old, and there isn’t a man anywhere who could impregnate us in the normal way.