Genesis 38:1-6

It happened at that time that Judah went down from his brothers and turned aside to a certain Adullamite, whose name was Hirah. There Judah saw the daughter of a certain Canaanite whose name was Shua. He took her and went in to her, and she conceived and bore a son, and he called his name Er. She conceived again and bore a son, and she called his name Onan. Yet again she bore a son, and she called his name Shelah. Judah was in Chezib when she bore him. And Judah took a wife for Er his firstborn, and her name was Tamar.