Deuteronomy 25:5-6

Laws Concerning Levirate Marriage

⁵ _e "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 _f 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 _g his name may not be blotted out of Israel.

1. Cross References
   Matthew 22:24
   Saying, "Teacher, Moses said, 'If a man dies having no children, his brother must marry the widow and raise up children for his brother.
   Mark 12:19
   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.
   Luke 20:28
   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.
   
2. Cross References
   Genesis 38:8 - 9
   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.
   Ruth 1:12 - 13
   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.
   Ruth 3:9
   He said, "Who are you?" And she answered, "I am Ruth, your servant. Spread your wings over your servant, for you are a redeemer.
   
3. Cross References
   Ruth 4:10
   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.