Luke 20:28

⁵If brothers dwell together, and one of them dies and has no son, the wife of the dead shall not be married outside to a stranger. Her husband’s brother shall go in to her, and take her as his wife, and perform the duty of a husband’s brother to her. ⁶It shall be that the firstborn whom she bears shall succeed in the name of his brother who is dead, that his name not be blotted out of Israel.

⁷If the man doesn’t want 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 raise up to his brother a name in Israel. He will not perform the duty of a husband’s brother to me.” ⁸Then the elders of his city shall call him, and speak to him. If he stands and says, “I don’t want to take her,” ⁹then his brother’s wife shall come to him in the presence of the elders, and loose his sandal from off his foot, and spit in his face. She shall answer and say, “So shall it be done to the man who does not build up his brother’s house.” ¹⁰His name shall be called in Israel, “The house of him who had his sandal removed.”

⁸Judah said to Onan, “Go in to your brother’s wife, and perform the duty of a husband’s brother to her, and raise up offspring for your brother.”

¹¹Then Judah said to Tamar, his daughter-in-law, “Remain a widow in your father’s house, until Shelah, my son, is grown up;” for he said, “Lest he also die, like his brothers.” Tamar went and lived in her father’s house.

¹¹Naomi said, “Go back, my daughters. Why do you want to go with me? Do I still have sons in my womb, that they may be your husbands? ¹²Go back, my daughters, go your way; for I am too old to have a husband. If I should say, ‘I have hope,’ if I should even have a husband tonight, and should also bear sons,

²⁶Judah acknowledged them, and said, “She is more righteous than I, because I didn’t give her to Shelah, my son.” He knew her again no more.