In the final chapter of Ruth, Boaz takes up the responsibility to be Ruth's kinsman-redeemer. The law in ancient Israel allowed the nearest male relative to buy the land of a deceased property owner to keep the holding within the family. The kinsman-redeemer also had the responsibility to take his relative's childless widow as his wife, and their firstborn son would inherit the redeemed land as if he were the actual son of the dead man. The redeemer had to be willing to take responsibility for everything that his dead kinsman had left behind. The nearer kinsman was not willing. Boaz was more than willing to buy back the land, to pay off any of Naomi's other debts, and to take Ruth as his wife and raise their son as Elimelech's heir. To him, she was the pearl of great price. Likewise, for His Bride, Christ gave all that He had, His perfect, sinless life, paying for the sins of the whole world. Naomi declares that the man will not rest until he has concluded the matter. Like Boaz, Christ has relentless, dogged determination to save His people and prepare them for His Kingdom. He is on the job night and day to present them holy, and blameless, and above reproach in His sight. Just as Boaz had said, I will perform the duty for you, as the LORD lives! so Christ will finish His work. Christ works within the boundaries He and the Father have established so that every price will be fully paid, every legal requirement will be fulfilled, and every involved party will be satisfied with the outcome. Because He loves His people, He redeems them lawfully so that there will never be any question as to their status before Him. Everyone will know that they belong to Him. God Himself declares that Zion shall be redeemed with justice, and her penitents with righteousness. Boaz and Ruth marry and produce a son, Obed. Obed means servant or worshipper. The product of Christ and a converted Christian is a servant and worshipper of God, the goal of God's harvest of firstfruits a new creation in the image of God.

Boaz redeems Ruth through the laws of levirate marriage by buying the rights to marry her from a closer kinsman. In this way Boaz becomes Ruth's redeemer. Jesus Christ acts similarly as the Redeemer who buys the church with the price of His own blood. Christ is the real Redeemer. The 144,000 are those redeemed by Christ the Lamb.

Boaz functions as kinsman-redeemer in the account. He is introduced as a relative of Naomi's husband from the family of Elimelech. As near kinsman he holds the right to redeem the piece of land that belonged to Elimelech and to acquire Ruth the Moabitess as wife in order to perpetuate the name of the dead through his inheritance. Boaz follows the lawful custom at the gate by calling ten elders of the city as witnesses, presenting the facts to the nearer kinsman, and allowing that man the first opportunity to redeem. When the nearer kinsman declines, Boaz completes the transaction by purchasing the land and taking Ruth as wife. He measures six ephahs of barley into her shawl and sends her home with the instruction not to go empty-handed to her mother-in-law. Through this redemption Ruth receives full provision and protection, the inheritance is secured, and a son named Obed is born, continuing the line that leads to David. The actions illustrate the kinsman-redeemer's determination to conclude the matter on the same day, his adherence to justice and righteousness, and his supply of abundant blessing beyond what the law required.