Genesis 38:3

The English Standar Version

and she conceived and bore a son, and he called his name Er.

Cross References

Genesis 46:12

The sons of Judah: Er, Onan, Shelah, Perez, and Zerah (but Er and Onan died in the land of Canaan); and the sons of Perez were Hezron and Hamul.

1 Chronicles 2:3

The sons of Judah: Er, Onan and Shelah; these three Bath-shua the Canaanite bore to him. Now Er, Judah's firstborn, was evil in the sight of the LORD, and he put him to death.

Numbers 26:19

The sons of Judah were Er and Onan; and Er and Onan died in the land of Canaan.