And he brought the family of Judah; and he took the family of the Zarhites: and he brought the family of the Zarhites man by man; and Zabdi was taken:
Afterward his brother came out with the scarlet thread upon his hand; and his name was called Zerah.
And the sons of Judah according to their families were: of Shelah, the family of the Shela'nites; of Perez, the family of the Per'ezites; of Zerah, the family of the Zer'ahites.
1 Chronicles 2:4-7
His daughter-in-law Tamar also bore him Perez and Zerah. Judah had five sons in all.
The sons of Perez: Hezron and Hamul.
The sons of Zerah: Zimri, Ethan, Heman, Calcol, and Dara, five in all.
The sons of Carmi: Achar, the troubler of Israel, who transgressed in the matter of the devoted thing;