When the brother with the red thread came out, they named him Zerah.
(SEE 46:8)
Judah and his daughter-in-law Tamar also had two sons: Perez and Zerah.
(SEE 9:4)
The people of Israel were represented at the Persian court by Pethahiah son of Meshezabel from the Zerah clan of the Judah tribe.
(SEE 1:2)