Deu 25:5-10 ESV “If brothers dwell together, and one of them dies and has no son, the wife of the dead man shall not be married outside the family 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. 6 And the first son whom she bears shall succeed to the name of his dead brother, that his name may not be blotted out of Israel. 7 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.’ 8 Then the elders of his city shall call him and speak to him, and if he persists, saying, ‘I do not wish to take her,’ 9 then his brother’s wife shall go up to him in the presence of the elders and pull his sandal off his foot and spit in his face. And she shall answer and say, ‘So shall it be done to the man who does not build up his brother’s house.’ 10 And the name of his house shall be called in Israel, ‘The house of him who had his sandal pulled off.’
Mat 22:24 ESV saying, “Teacher, Moses said, ‘If a man dies having no children, his brother must marry the widow and raise up offspring for his brother.’
Mar 12:19 ESV “Teacher, Moses wrote for us that if a man’s brother dies and leaves a wife, but leaves no child, the man must take the widow and raise up offspring for his brother.
Luk 20:28 ESV 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.
Gen 38:8-10 ESV Then Judah said to Onan, “Go in to your brother’s wife and perform the duty of a brother-in-law to her, and raise up offspring for your brother.” 9 But Onan knew that the offspring would not be his. So whenever he went in to his brother’s wife he would waste the semen on the ground, so as not to give offspring to his brother. 10 And what he did was wicked in the sight of the LORD, and he put him to death also.
Rth 1:12 ESV Turn back, my daughters; go your way, for I am too old to have a husband. If I should say I have hope, even if I should have a husband this night and should bear sons,
Rth 4:5 ESV 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.”
Rth 4:9-10 ESV Then Boaz said to the elders and all the people, “You are witnesses this day that I have bought from the hand of Naomi all that belonged to Elimelech and all that belonged to Chilion and to Mahlon. 10 Also Ruth the Moabite, the widow of Mahlon, I have bought to be my wife, to perpetuate the name of the dead in his inheritance, that the name of the dead may not be cut off from among his brothers and from the gate of his native place. You are witnesses this day.”