Genesis 38:20-30

And Judah sent the kid of the goats by the hand of his friend the Adullamite, to receive the pledge from the woman’s hand: but he found her not. Then he asked the men of her place, saying, Where is the prostitute, that was at Enaim by the wayside? And they said, There hath been no prostitute here. And he returned to Judah, and said, I have not found her; and also the men of the place said, There hath been no prostitute here. And Judah said, Let her take it to her, lest we be put to shame: behold, I sent this kid, and thou hast not found her. And it came to pass about three months after, that it was told Judah, saying, Tamar thy daughter-in-law hath played the harlot; and moreover, behold, she is with child by whoredom. And Judah said, Bring her forth, and let her be burnt. When she was brought forth, she sent to her father-in-law, saying, By the man, whose these are, am I with child: and she said, Discern, I pray thee, whose are these, the signet, and the cords, and the staff. And Judah acknowledged them, and said, She is more righteous than I, forasmuch as I gave her not to Shelah my son. And he knew her again no more. And it came to pass in the time of her travail, that, behold, twins were in her womb. And it came to pass, when she travailed, that one put out a hand: and the midwife took and bound upon his hand a scarlet thread, saying, This came out first. And it came to pass, as he drew back his hand, that, behold, his brother came out: and she said, Wherefore hast thou made a breach for thyself? therefore his name was called Perez. And afterward came out his brother, that had the scarlet thread upon his hand: and his name was called Zerah.