Genesis 38:27-29

27When the time came for her to give birth, there were twins in her womb.

28As she was giving birth, one of them put out his hand, and the midwife took it and tied a scarlet thread around it, announcing, “This one came out first.”

29But then he pulled his hand back, out came his brother, and she said, “What a breakout you have made for yourself!” So he was named Perez.