Genesis 38:11-19

Then said Judah to Tamar his daughter-in-law, Remain a widow in thy father’s house, till Shelah my son be grown up; for he said, Lest he also die, like his brethren. And Tamar went and dwelt in her father’s house. And in process of time Shua’s daughter, the wife of Judah, died; and Judah was comforted, and went up unto his sheep-shearers to Timnah, he and his friend Hirah the Adullamite. And it was told Tamar, saying, Behold, thy father-in-law goeth up to Timnah to shear his sheep. And she put off from her the garments of her widowhood, and covered herself with her veil, and wrapped herself, and sat in the gate of Enaim, which is by the way to Timnah; for she saw that Shelah was grown up, and she was not given unto him to wife. When Judah saw her, he thought her to be a harlot; for she had covered her face. And he turned unto her by the way, and said, Come, I pray thee, let me come in unto thee: for he knew not that she was his daughter-in-law. And she said, What wilt thou give me, that thou mayest come in unto me? And he said, I will send thee a kid of the goats from the flock. And she said, Wilt thou give me a pledge, till thou send it? And he said, What pledge shall I give thee? And she said, Thy signet and thy cord, and thy staff that is in thy hand. And he gave them to her, and came in unto her, and she conceived by him. And she arose, and went away, and put off her veil from her, and put on the garments of her widowhood.