then his brother’s wife must come to him in the presence of the elders and remove his sandal from his foot, and spit in his face, and answer and say, “So shall it be done to that man who will not build up his brother’s house.”
(Now this was the custom in ancient times in Israel for redeeming and exchanging: to confirm a transaction, a man would remove his sandal and give it to his neighbor. This was a binding act in Israel.)
Then Boaz said to the elders and all the people, “You are witnesses today that I have bought everything that belonged to Elimelek, Kilion, and Mahlon from Naomi.