C. F. Keil and Franz Delitzsch on Genesis 38:22-23

Gen 38:22-23

When his friend returned with the kid and reported his want of success, Judah resolved to leave his pledges with the girl, that he might not expose himself to the ridicule of the people by any further inquiries, since he had done his part towards keeping his promise. “Let her take them (i.e., keep the signet-ring and staff) for herself, that we may not become a (an object of) ridicule.” The pledges were unquestionably of more value than a young he-goat.