Genesis 38:15 in the King James Version
When Judah saw her, he thought her to be an harlot; because she had covered her face.
Context
14 She took off the garments of her widowhood, and covered herself with her veil, and wrapped herself, and sat in the gate of Enaim, which is on the way to Timnah; for she saw that Shelah was grown up, and she wasn’t given to him as a wife.
15 When Judah saw her, he thought that she was a prostitute, for she had covered her face.
16 He turned to her by the way, and said, “Please come, let me come in to you,” for he didn’t know that she was his daughter-in-law. She said, “What will you give me, that you may come in to me?”