And the sons of Judah according to their families were: of Shelah, the family of the Shelanites; of Perez, the family of the Parzites; of Zerah, the family of the Zarhites.
The sons of Shelah the son of Judah were Er the father of Lecah, Laadah the father of Mareshah, and the families of the house of the linen workers of the house of Ashbea;
Then Judah said to Tamar his daughter-in-law, “Remain a widow in your father’s house till my son Shelah is grown.” For he said, “Lest he also die like his brothers.” And Tamar went and dwelt in her father’s house.
The sons of Judah were Er, Onan, and Shelah. These three were born to him by the daughter of Shua, the Canaanitess. Er, the firstborn of Judah, was wicked in the sight of the Lord; so He killed him.