Numbers 26:19

And it came to pass at that time, that Judah went down from his brethren, and turned in to a certain Adullamite, whose name was Hirah. And Judah saw there a daughter of a certain Canaanite, whose name was Shuah; and he took her, and went in unto her. And she conceived, and bare a son; and he called his name Er. And she conceived again, and bare a son; and she called his name Onan. And she yet again conceived, and bare a son; and called his name Shelah: and he was at Chezib, when she bare him. And Judah took a wife for Er his firstborn, whose name was Tamar. And Er, Judah's firstborn, was wicked in the sight of the LORD; and the LORD slew him. And Judah said unto Onan, Go in unto thy brother's wife, and marry her, and raise up seed to thy brother. And Onan knew that the seed should not be his; and it came to pass, when he went in unto his brother's wife, that he spilled it on the ground, lest that he should give seed to his brother. And the thing which he did displeased the LORD: wherefore he slew him also.

And the sons of Judah; Er, and Onan, and Shelah, and Pharez, and Zarah: but Er and Onan died in the land of Canaan. And the sons of Pharez were Hezron and Hamul.

The sons of Judah; Er, and Onan, and Shelah: which three were born unto him of the daughter of Shua the Canaanitess. And Er, the firstborn of Judah, was evil in the sight of the LORD; and he slew him. And Tamar his daughter in law bore him Pharez and Zerah. All the sons of Judah were five. The sons of Pharez; Hezron, and Hamul. And the sons of Zerah; Zimri, and Ethan, and Heman, and Calcol, and Dara: five of them in all. And the sons of Carmi; Achar, the troubler of Israel, who transgressed in the thing accursed. And the sons of Ethan; Azariah.