Again she conceived and bore a son, and she called his name Onan.
Now Adam knew Eve his wife, and she conceived and bore Cain, saying, “I have gotten a man with the help of the Lord.”
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.
The sons of Judah: Er, Onan, and Shelah; these three Bath-shua the Canaanitess bore to him. Now Er, Judah's first-born, was wicked in the sight of the Lord, and he slew him.
The sons of Judah were Er and Onan; and Er and Onan died in the land of Canaan.