Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[332] When she had informed her mother-in-law of this, they were very glad of it, out of the hope they had that Booz would make provision for them. Now about noon Booz went down into the city, and gathered the senate together, and when he had sent for Ruth, he called for her kinsman also; and when he was come, he said, "Dost not thou retain the inheritance of Elimelech and his sons?" He confessed that he did retain it, and that he did as he was permitted to do by the laws, because he was their nearest kinsman. Then said Booz, "Thou must not remember the laws by halves, but do every thing according to them; for the wife of Mahlon is come hither, whom thou must marry, according to the law, in case thou wilt retain their fields." So the man yielded up both the field and the wife to Booz, who was himself of kin to those that were dead, as alleging that he had a wife already, and children also; so Booz called the senate to witness, and bid the woman to loose his shoe, and spit in his face, according to the law; and when this was done, Booz married Ruth, and they had a son within a year's time. Naomi was herself a nurse to this child; and by the advice of the women, called him Obed, as being to be brought up in order to be subservient to her in her old age, for Obed in the Hebrew dialect signifies a servant. The son of Obed was Jesse, and David was his son, who was king, and left his dominions to his sons for one and twenty generations. I was therefore obliged to relate this history of Ruth, because I had a mind to demonstrate the power of God, who, without difficulty, can raise those that are of ordinary parentage to dignity and splendor, to which he advanced David, though he were born of such mean parents.