Onan

Again she conceived and gave birth to a son, and she named him Onan.

Then Judah said to Onan, “Sleep with your brother’s wife. Perform your duty as her brother-in-law and raise up offspring for your brother.”

But Onan knew that the offspring would not belong to him; so whenever he would sleep with his brother’s wife, he would spill his seed on the ground so that he would not produce offspring for his brother.

The sons of Judah: Er, Onan, Shelah, Perez, and Zerah; but Er and Onan died in the land of Canaan. The sons of Perez: Hezron and Hamul.

The sons of Judah were Er and Onan, but they died in the land of Canaan.

The sons of Judah: Er, Onan, and Shelah. These three were born to him by Bath-shua the Canaanite. Er, Judah’s firstborn, was wicked in the sight of the LORD, who put him to death.