1 Chronicles 2:4-8

Tamar his daughter-in-law bore him Perez and Zerah. Judah had five sons in all. The sons of Perez were Hezron and Hamul. The sons of Zerah were Zimri, Ethan, Heman, Calcol and Dara; five of them in all. The son of Carmi was Achar, the troubler of Israel, who violated the ban. The son of Ethan was Azariah.