1 Chronicles 2:3
The sons of Judah: Er, and Onan, and Shelah; which three were born to him of Shua's daughter the Canaanitess. Er, Judah's firstborn, was wicked in the sight of Yahweh; and he killed him.
Genesis 38:2-10
Judah saw there a daughter of a certain Canaanite whose name was Shua. He took her, and went in to her.
Genesis 46:12
The sons of Judah: Er, Onan, Shelah, Perez, and Zerah; but Er and Onan died in the land of Canaan. The sons of Perez were Hezron and Hamul.
Numbers 26:19
The sons of Judah: Er and Onan; and Er and Onan died in the land of Canaan.
1 Chronicles 9:5
Of the Shilonites: Asaiah the firstborn, and his sons.