Moses
Genesis 38:18ESV·traditional attribution

He said, “What pledge shall I give you?” She replied, “Your signet 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.

Matthew Henry Presbyterian @wholebiblehenry

It is a very ill-favoured story that is here told concerning Judah; one would not have expected such folly in Israel. Judah had buried his wife; and widowers have need to stand upon their guard with the utmost caution and resolution against all fleshly lusts. He was unjust to his daughter-in-law, either through negligence or design, in not giving her his surviving son, and this exposed her to temptation. I.

Commenting on Genesis 38:12-23

John Gill Reformed Baptist @doctorgill

And she arose and went away,.... To her father's house immediately, as soon as ever she had parted with Judah; and lest she should be found by the person that would be sent with the kid, and be discovered, she made all the haste she could: and laid by her veil from her, and put on the garments of her widowhood; that it might not...

Jamieson-Fausset-Brown Reformed @jfbcommentary

signet, &c.--Bracelets, including armlets, were worn by men as well as women among the Hebrews. But the Hebrew word here rendered "bracelets," is everywhere else translated "lace" or "ribbon"; so that as the signet alone was probably more than an equivalent for the kid, it is not easy to conjecture why the other things were given in addition, except by supposing the perforated seal was...