Genesis 38:8-10

Judah and Tamar

⁸ Then Judah said to Onan, "Go in to _t your brother's wife and _u 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.

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
   Deuteronomy 25:5 - 10
   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.