Genesis 38:4

She became pregnant again and gave birth to another son and named him Onan.

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

Er and Onan were sons of Judah, but they died in Canaan.

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And she conceived again, and bare a son; and she called his name Onan.

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

Er and Onan were sons of Judah, but they died in Canaan.