Genesis 38:7 in the World English Bible
Er, Judah’s firstborn, was wicked in the LORD’s sight. So the LORD killed him.
Context
6 And Judah took a wife for Er his firstborn, whose name was Tamar.
7 And Er, Judah’s firstborn, was wicked in the sight of the LORD; and the LORD slew him.
8 And Judah said unto Onan, Go in unto thy brother’s wife, and marry her, and raise up seed to thy brother.