Ruth 4:3-6

And Boaz said to the family redeemer, “You know Naomi, who came back from Moab. She is selling the land that belonged to our relative Elimelech. I thought I should speak to you about it so that you can redeem it if you wish. If you want the land, then buy it here in the presence of these witnesses. But if you don’t want it, let me know right away, because I am next in line to redeem it after you.” The man replied, “All right, I’ll redeem it.” Then Boaz told him, “Of course, your purchase of the land from Naomi also requires that you marry Ruth, the Moabite widow. That way she can have children who will carry on her husband’s name and keep the land in the family.” “Then I can’t redeem it,” the family redeemer replied, “because this might endanger my own estate. You redeem the land; I cannot do it.”