Genesis 38:28-30

New American Standard Bible

²⁸ Moreover, it took place while she was giving birth, that one baby put out a hand, and the midwife took and tied a scarlet thread on his hand, saying, “This one came out first.” ²⁹ But it came about as he drew back his hand that behold, his brother came out. Then she said, “What a breach you have made for yourself!” So he was named ^[a](A)Perez. ³⁰ Afterward his brother came out who had the scarlet thread on his hand; and he was named ^[b](B)Zerah.