Genesis 38:3

New King James Version

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

Cross References

Genesis 46:12

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

1 Chronicles 2:3

The sons of Judah were Er, Onan, and Shelah. These three were born to him by the daughter of Shua, the Canaanitess. Er, the firstborn of Judah, was wicked in the sight of the Lord; so He killed him.

Numbers 26:19

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