'Pledge' in the Bible

He said, therefore, “I will send you a young goat from the flock.” She said, moreover, “Will you give a pledge until you send it?”

He said, “What pledge shall I give you?” And she said, “Your seal and your cord, and your staff that is in your hand.” So he gave them to her and went in to her, and she conceived by him.

When Judah sent the young goat by his friend the Adullamite, to receive the pledge from the woman’s hand, he did not find her.