Genesis 38:24-30

24And it came to pass, about three months after, that Judah was told, saying, “Tamar your daughter-in-law has played the harlot; furthermore she is with child by harlotry.” So Judah said, “Bring her out and let her be burned!”

25When she was brought out, she sent to her father-in-law, saying, “By the man to whom these belong, I am with child.” And she said, “Please determine whose these are—the signet and cord, and staff.”

26So Judah acknowledged them and said, “She has been more righteous than I, because I did not give her to Shelah my son.” And he never knew her again.

27Now it came to pass, at the time for giving birth, that behold, twins were in her womb.

28And so it was, when she was giving birth, that the one put out his hand; and the midwife took a scarlet thread and bound it on his hand, saying, “This one came out first.”

29Then it happened, as he drew back his hand, that his brother came out unexpectedly; and she said, “How did you break through? This breach be upon you!” Therefore his name was called Perez.

30Afterward his brother came out who had the scarlet thread on his hand. And his name was called Zerah.