Er

And she conceived, and bare a son; and he called his name Er.

And Judah took a wife for Er his firstborn, whose name was Tamar.

And Er, Judah's firstborn, was wicked in the sight of the LORD; and the LORD slew him.

And 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.

The sons of Judah were Er and Onan: and Er and Onan died in the land of Canaan.

Which was the son of Melchi, which was the son of Addi, which was the son of Cosam, which was the son of Elmodam, which was the son of Er,