Then Boaz said to the elders and all the people, “You are witnesses this day that I have bought from the hand of Naomi all that belonged to Elimelech and all that belonged to Chilion and to Mahlon. Also Ruth the Moabite, the widow of Mahlon, I have bought to be my wife, to perpetuate the name of the dead in his inheritance, that the name of the dead may not be cut off from among his brothers and from the gate of his native place. You are witnesses this day.” Then all the people who were at the gate and the elders said, “We are witnesses. May the LORD make the woman, who is coming into your house, like Rachel and Leah, who together built up the house of Israel. May you act worthily in Ephrathah and be renowned in Bethlehem, and may your house be like the house of Perez, whom Tamar bore to Judah, because of the offspring that the LORD will give you by this young woman.” (Ruth 4:9-12)
Men are ready to seize opportunities for increasing their estates, but few know the value of godliness.
Such are the wise men of this world, whom the Lord charges with folly. They attend not to the concerns of their souls, but reject the salvation of Christ, for fear of marring their inheritance.
But God did Boaz the honor to bring him into the line of the Messiah, while the kinsman, who was afraid of lessening himself, and marring his inheritance, has his name, family, and inheritance forgotten.
Adapted from Matthew Henry Concise Commentary