Ruth 1:11
But Naomi responded, "Go back, my daughters. Why go with me? Are there still sons to be born to me as future husbands for you?
Genesis 38:11
After this, Judah told his daughter-in-law Tamar, "Go live as a widow in your father's house until my son Shelah grows up." But he was really thinking, ""otherwise, Shelah might die like his brothers." So Tamar left and lived in her father's house.
Deuteronomy 25:5
"When two brothers are living together and one of them dies without leaving a son, his widow must not be married outside the family to a foreigner. Instead, the brother-in-law must go to her, take her as his wife, and by doing so perform the duty of a brother-in-law.