Ruth 4:7-10

7Now in former times in Israel, concerning the redemption or exchange of property, to make any matter legally binding a man would remove his sandal and give it to the other party, and this was a confirmation in Israel. 8So the kinsman-redeemer removed his sandal and said to Boaz, “Buy it for yourself.”

9At this, Boaz said to the elders and all the people, “You are witnesses today that I am buying from Naomi all that belonged to Elimelech, Chilion, and Mahlon. 10Moreover, I have acquired Ruth the Moabitess, Mahlon’s widow, as my wife, to raise up the name of the deceased through his inheritance, so that his name will not disappear from among his brothers or from the gate of his home. You are witnesses today.”