NET

7 (Now this used to be the customary way to finalize a transaction involving redemption in Israel: A man would remove his sandal and give it to the other party. This was a legally binding act in Israel.)

Darby

7 Now this [was the custom] in former time in Israel concerning redemption and concerning exchange, to confirm the whole matter: a man drew off his sandal, and gave it to his neighbour, and this was the [mode of] attestation in Israel.

KJV

7 Now this [was the manner] in former time in Israel concerning redeeming and concerning changing, for to confirm all things; a man plucked off his shoe, and gave [it] to his neighbour: and this [was] a testimony in Israel.