Thematic Bible: By taking off the shoe

And the redeemer said, "I am not able to redeem for myself, lest I ruin my inheritance. You redeem for yourself my kinsman-redemption, for I am not able to redeem [it]." (Now this {was the custom in former times} in Israel concerning the kinsman-redemption and transfer of property: to confirm the matter, a man removed his sandal and gave [it] to his fellow countryman. This [was] the manner of attesting in Israel.) So the redeemer said to Boaz, "Acquire [it] for yourself," and he removed his sandal.