“She has been more righteous than I.”

Then Judah said to Tamar his daughter-in-law, “Remain a widow in your father’s house till my son Shelah is grown.” For he said, “Lest he also die like his brothers.” And Tamar went and dwelt in her father’s house. And it was told Tamar, saying, “Look, your father-in-law is going up to Timnah to shear his sheep.” So she took off her widow’s garments, covered herself with a veil and wrapped herself, and sat in an open place which was on the way to Timnah; for she saw that Shelah was grown, and she was not given to him as a wife. When Judah saw her, he thought she was a harlot, because she had covered her face. Then he turned to her by the way, and said, “Please let me come in to you”; for he did not know that she was his daughter-in-law. So she said, “What will you give me, that you may come in to me?” And he said, “I will send a young goat from the flock.” So she said, “Will you give me a pledge till you send it? ” Then he said, “What pledge shall I give you?” So she said, “Your signet and cord, and your staff that is in your hand.” Then he gave them to her, and went in to her, and she conceived by him. And 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!” When 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.” So 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.
Genesis 38:6-11,13-18,24-26 - NKJV