The Book of Ruth does not specifically name its author. Tradition suggest the Book of Ruth was written by the Prophet Samuel. The exact date the Book of Ruth was written is uncertain. However, the prevalent view is a date between 1011 and 931 B.C.
The Book of Ruth was written to the Israelites. It teaches that genuine love at times may require uncompromising sacrifice. Regardless of our lot in life, we can live according to the precepts of God. Genuine love and kindness will be rewarded. God abundantly blesses those who seek to live obedient lives. Obedient living does not allow for "accidents" in God's plan. God extends mercy to the merciful.
The setting for the Book of Ruth begins in the heathen country of Moab, a region northeast of the Dead Sea, but then moves to Bethlehem. This true account takes place during the dismal days of failure and rebellion of the Israelites, called the period of the Judges. A famine forces Elimelech and his wife, Naomi, from their Israelite home to the country of Moab. Elimelech dies and Naomi is left with her 2 sons, who soon marry 2 Moabite girls, Orpah and Ruth. Later both of the sons die, and Naomi is left alone with Orpah and Ruth in a strange land. Orpah returns to her parents, but Ruth determines to stay with Naomi as they journey to Bethlehem. This story of love and devotion tells of Ruth's eventual marriage to a wealthy man named Boaz, by whom she bears a son, Obed, who becomes the grandfather of David and the ancestor of Jesus. Obedience brings Ruth into the lineage of Christ.
A major theme of the Book of Ruth is that of the kinsman-redeemer. Boaz, a relative of Naomi on her husband’s side, acted upon his duty as outlined in the Mosaic Law to redeem an impoverished relative from his or her circumstances (Lev. 25:47-49). This scenario is repeated by Christ, who redeems man, the spiritually impoverished, from sin.
We see in Ruth an example of the virtuous woman of Proverbs 31. In addition to being devoted to her family (Ruth 1:15-18; Proverbs 31:10-12) and faithfully dependent upon God (Ruth 2:12; Proverbs 31:30), we see in Ruth a woman of godly speech. Her words are loving, kind and respectful, both to Naomi and to Boaz. The virtuous woman of Proverbs 31 “opens her mouth with wisdom, and on her tongue is the law of kindness” (v. 26).