4:13-22 Ruth bore a son, through whom thousands and myriads were born to God; and in being the lineal ancestor of Christ, she was instrumental in the happiness of all that shall be saved by him; even of us Gentiles, as well as those of Jewish descent. She was a witness for God to the Gentile world, that he had not utterly forsaken them, but that in due time they should become one with his chosen people, and partake of his salvation. Prayer to God attended the marriage, and praise to him attended the birth of the child. What a pity it is that pious language should not be more used among Christians, or that it should be let fall into formality! Here is the descent of David from Ruth. And the period came when Bethlehem-Judah displayed greater wonders than those in the history of Ruth, when the outcast babe of another forlorn female of the same race appeared, controlling the counsels of the Roman master of the world, and drawing princes and wise men from the east, with treasures of gold, and frankincense, and myrrh to his feet. His name shall endure for ever, and all nations shall call Him blessed. In that Seed shall all the nations of the earth be blessed.And Obed begat Jesse,.... The Bethlehemite, the father of David:

and Jesse begat David; the Targum adds, the king of Israel; and so the Syriac and Arabic versions add, the king; from whence it is by some concluded that this book was written by Samuel, not only after the birth of David, but after he had been anointed king by him: here being but four generations mentioned, from the coming of the Israelites into Canaan, to the birth of David, which was three hundred and sixty years, each of the four persons, Salmon, Boaz, Obed, and Jesse, must beget a son when one hundred years old and upwards; and which is not at all incredible, as appears by instances in later times, and therefore not at all improbable, that in those ancient times men of sobriety and good constitutions should have children at such an age.