Genesis 38:9-11

EasyEnglish Bible

⁹ But Onan did not want Tamar to give birth to his child. He knew that the child would not belong to him. So when he had sex with his brother's wife Tamar, he made his semen go onto the ground. Onan did this so that Tamar would not give birth to a child for his dead brother.

¹⁰ What Onan did was bad, and the Lord was not pleased with him. So the Lord caused Onan to die too. ¹¹ Then Judah said to his son's widow, Tamar, ‘Go back to your father's house and live there as a widow. Stay there until my son Shelah grows older.’ Judah thought, ‘I do not want Shelah to die in the way that his brothers died.’ So Tamar went to live in her father's house.