1 Chronicles 2:3

Judah's three sons Er, Onan, and Shelah were born to him through Bath-shua, a Canaanite. Er, Judah's firstborn, became wicked in the LORD's sight, so he put him to death.

Genesis 38:2-10

There Judah met the daughter of a Canaanite man named Shua. He married her, had sexual relations with her,

Genesis 46:12

and Judah's sons Er, Onan, Shelah, Perez, and Zerah. (Technically, Er and Onan had died in the land of Canaan.) Perez's sons were Hezron and Hamul.

Numbers 26:19

The descendants of Judah originally included Er and Onan, though Er and Onan died in the land of Canaan.

1 Chronicles 9:5

From the descendants of Shilon there was Asaiah the firstborn, along with his descendants.

Treasury of Scripture Knowledge

Summary

The sons of Judah; Er, and Onan, and Shelah: which three were born unto him of the daughter of Shua the Canaanitess. And Er, the firstborn of Judah, was evil in the sight of the LORD; and he slew him.

Bible References

Er, and

1 Chronicles 9:5
From the descendants of Shilon there was Asaiah the firstborn, along with his descendants.
Genesis 38:2
There Judah met the daughter of a Canaanite man named Shua. He married her, had sexual relations with her,
Genesis 46:12
and Judah's sons Er, Onan, Shelah, Perez, and Zerah. (Technically, Er and Onan had died in the land of Canaan.) Perez's sons were Hezron and Hamul.
Numbers 26:19
The descendants of Judah originally included Er and Onan, though Er and Onan died in the land of Canaan.

International Standard Version Copyright © 1996-2008 by the ISV Foundation.