When it was time for her to give birth, there were twins in her womb. While she was giving birth, one child put out his hand, and the midwife took a scarlet thread and tied it on his hand, saying, "This one came out first." 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. read more.
Afterward his brother came out -- the one who had the scarlet thread on his hand -- and he was named Zerah.