1 Chronicles 2:3

The sons of Judah: Er and Onan and Shelah; these three were his sons by Bathshua, the Canaanite woman. And Er, Judah's oldest son, did evil in the eyes of the Lord; and he put him to death.

Genesis 38:2-10

And there he saw the daughter of a certain man of Canaan named Shua, and took her as his wife.

Genesis 46:12

And the sons of Judah: Er and Onan and Shelah and Perez and Zerah: but Er and Onan had come to their death in the land of Canaan; and the sons of Perez were Hezron and Hamul.

Numbers 26:19

The sons of Judah, Er and Onan: and Er and Onan had come to their death in the land of Canaan.

1 Chronicles 9:5

And of the Shilonites: Asaiah the oldest, and his sons.

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
And of the Shilonites: Asaiah the oldest, and his sons.
Genesis 38:2
And there he saw the daughter of a certain man of Canaan named Shua, and took her as his wife.
Genesis 46:12
And the sons of Judah: Er and Onan and Shelah and Perez and Zerah: but Er and Onan had come to their death in the land of Canaan; and the sons of Perez were Hezron and Hamul.
Numbers 26:19
The sons of Judah, Er and Onan: and Er and Onan had come to their death in the land of Canaan.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain