Genesis 38:27

38:27 When it was time for her to give birth, there were twins in her womb.

Genesis 38:29-30

38:29 But then he drew back his hand, and his brother came out before him. She said, “How you have broken out of the womb!” So he was named Perez. 38:30 Afterward his brother came out – the one who had the scarlet thread on his hand – and he was named Zerah.

Genesis 46:12

46:12 The sons of Judah:

Er, Onan, Shelah, Perez, and Zerah

(but Er and Onan died in the land of Canaan).

The sons of Perez were Hezron and Hamul.

Numbers 26:20-21

26:20 And the Judahites by their families were: from Shelah, the family of the Shelahites; from Perez, the family of the Perezites; and from Zerah, the family of the Zerahites. 26:21 And the Perezites were: from Hezron, the family of the Hezronites; from Hamul, the family of the Hamulites.

Numbers 26:1

A Second Census Required

26:1 After the plague the Lord said to Moses and to Eleazar son of Aaron the priest,

Numbers 2:3-4

The Tribes on the East

2:3 “Now those who will be camping on the east, toward the sunrise, are the divisions of the camp of Judah under their standard. The leader of the people of Judah is Nahshon son of Amminadab. 2:4 Those numbered in his division are 74,600.