Thematic Bible: Takes two wives

At that time Judah withdrew from his brothers and went to [lodge with] a certain Adullamite named Hirah. There Judah saw and met a daughter of Shuah, a Canaanite; he took her as wife and lived with her. And she became pregnant and bore a son, and he called him Er. read more.
And she conceived again and bore a son and named him Onan. Again she conceived and bore a son and named him Shelah. [They were living] at Chezib when she bore him. Now Judah took a wife for Er, his firstborn; her name was Tamar.