Introduction
Content, Character, and Origin of the Book of Ruth.
The book of Ruth (̔Ρούθ) introduces us to the family life of the ancestors of king David, and informs us, in a simple and attractive form of historical narrative, and one in harmony with the tender and affectionate contents, how Ruth the Moabitess, a daughter-in-law of the Bethlehemite Elimelech, of the family of Judah, who had emigrated with his wife and his two sons into the land of Moab on account of a famine, left father and mother, fatherland and kindred, after the death of her husband, and out of childlike affection to her Israelitish mother-in-law Naomi, whose husband had also died in the land of Moab, and went with her to Judah, to take refuge under the wings of the God of Israel (Ruth 1); and how, when there, as she was going in her poverty to glean some ears of corn in the field of a wealthy man, she came apparently by accident to the field of Boaz, a near relation of Elimelech, and became acquainted with this honourable and benevolent man (Ruth 2); how she then sought marriage with him by the wish of her mother-in-law (Ruth 3), and was taken by him as a wife, according to the custom of Levirate marriage, in all the ordinary legal forms, and bare a son in this marriage, named Obed. This Obed was the grandfather of David (Ruth 4:1–17), with whose genealogy the book closes (Ruth 4:18–22).
In this conclusion the meaning and tendency of the whole narrative is brought clearly to light. The genealogical proof of the descent of David from Perez through Boaz and the Moabitess Ruth (Ruth 4:18–22) forms not only the end, but the starting-point, of the history contained in the book. For even if we should not attach so much importance to this genealogy as to say with Auberlen that “the book of Ruth contains, as it were, the inner side, the spiritually moral background of the genealogies which play so significant a part even in the Israelitish antiquity;” so much is unquestionably true, that the book contains a historical picture from the family life of the ancestors of David, intended to show how the ancestors of this great king walked uprightly before God and man in piety and singleness of heart, and in modesty and purity of life. “Ruth, the Moabitish great-great-grandmother of David, longed for the God and people of Israel to them with all the power of love; and Boaz was an upright Israelite, without guile, full of holy reverence for every ordinance of God and man, and full of benevolent love and friendliness towards the poor heathen woman. From such ancestors was the man descended in whom all the nature of Israel was to find its royal concentration and fullest expression” (Auberlen). But there is also a Messianic trait in the fact that Ruth, a heathen woman, of a nation so hostile to the Israelites as that of Moab was, should have been thought worthy to be made the tribe-mother of the great and pious king David, on account of her faithful love to the people of Israel, and her entire confidence in Jehovah, the God of Israel. As Judah begat Perez from Tamar and Canaanitish woman (Gen. 38), and as Rahab was adopted into the congregation of Israel (Josh. 6:25), and according to ancient tradition was married to Salmon (Matt. 1:5), so the Moabitess Ruth was taken by Boaz as his wife, and incorporated in the family of Judah, from which Christ was to spring according to the flesh (see Matt. 1:3, 5, where these three women are distinctly mentioned by name in the genealogy of Jesus).
Carl Friedrich Keil and Franz Delitzsch, Commentary on the Old Testament, vol. 2 (Peabody, MA: Hendrickson, 1996), 339–340.