Genesis 38:4
She conceived again and bore a son, and she called his name Onan.
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.
Numbers 26:19
The sons of Judah were Er and Onan; and Er and Onan died in the land of Canaan.
Treasury of Scripture Knowledge
Summary
And she conceived again, and bare a son; and she called his name Onan.
Bible References
Onan
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.
Numbers 26:19
The sons of Judah were Er and Onan; and Er and Onan died in the land of Canaan.