'Buying' in the Bible

Boaz continued, "On the very day you buy the field from Naomi, you're also "buying" Ruth the Moabite woman, the wife of her dead husband, so the family name may be continued as an inheritance."

Boaz said to the elders and all the people, “You are witnesses today that I am buying from Naomi everything that belonged to Elimelech, Chilion, and Mahlon.