1Ch 1 Chronicles, chapter First Book of Chronicles, chapter 2
The sons of Judah: Er, Onan, and Shelah, which three were born to him of Shua’s daughter the Canaanitess. Er, Judah’s firstborn, was wicked in Yahweh’s2:3 “Yahweh” is God’s proper Name, sometimes rendered “LORD” (all caps) in other translations. sight; and he killed him. Gen 38:3