Numbers 26:19

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

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.

Genesis 38:1-10

It happened at that time that Judah went down from his brothers and turned aside to a certain Adullamite, whose name was Hirah.

1 Chronicles 2:3-8

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.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

Er and onan

Genesis 38:1
It happened at that time that Judah went down from his brothers and turned aside to a certain Adullamite, whose name was Hirah.
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.

General references

Numbers 1:26
Of the people of Judah, their generations, by their clans, by their fathers' houses, according to the number of names, from twenty years old and upward, every man able to go to war:

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.