'Transaction' in the Bible

At an earlier period in Israel, a man removed his sandal and gave it to the other party in order to make any matter legally binding concerning the right of redemption or the exchange of property. This was the method of legally binding a transaction in Israel.

The city is sure to fall into the hands of the Babylonians. Yet, in spite of this, you, Lord God, have said to me, "Buy that field with silver and have the transaction legally witnessed."'"