Perez
A son of Judah by Tamar, and twin of Zerah. At their birth Zerah's hand appeared first and the midwife tied a scarlet thread to it, but he drew it back and Perez was born first — hence the name, 'a breach'. Despite the irregularity of his conception he became the ancestor of the leading clan of Judah: Boaz, Jesse and David descended from him, and both Matthew and Luke carry his name in the genealogy of Jesus. The blessing spoken over Boaz and Ruth asks that their house be like the house of Perez.
What we know — and how we know it
Where in scripture
GenesisNumbersRuth1 ChroniclesNehemiahMatthewLukeAs he drew back his hand, behold, his brother came out, and she said, “Why have you made a breach for yourself?” Therefore his name was called Perez.
Genesis 38:29 — His birth
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.
Genesis 46:12
The sons of Judah after their families were: of Shelah, the family of the Shelanites; of Perez, the family of the Perezites; of Zerah, the family of the Zerahites.
Numbers 26:20
The sons of Perez were: of Hezron, the family of the Hezronites; of Hamul, the family of the Hamulites.
Numbers 26:21
Let your house be like the house of Perez, whom Tamar bore to Judah, of the offspring which Yahweh will give you by this young woman.”
Ruth 4:12
Now this is the history of the generations of Perez: Perez became the father of Hezron,
Ruth 4:18 — Ancestor of David
Tamar his daughter-in-law bore him Perez and Zerah. All the sons of Judah were five.
1 Chronicles 2:4
The sons of Perez: Hezron and Hamul.
1 Chronicles 2:5
Scripture quotations are from the World English Bible, a public-domain translation.