3And she conceived, and bare a son; and he called his name Er.6And Judah took a wife for Er his firstborn, whose name was Tamar.7And Er, Judah's firstborn, was wicked in the sight of the LORD; and the LORD slew him.

12And the sons of Judah; Er, and Onan, and Shelah, and Pharez, and Zerah: but Er and Onan died in the land of Canaan. And the sons of Pharez were Hezron and Hamul.