It is safe to assume that the Book of Ruth was put in its final form after David became king in Hebron in 1011 B.C. since he is recognized as a very important figure in the genealogy (4:17, 22). How much later is hard to determine. The Babylonian Talmud attributed authorship of the book to Samuel.2This statement reflects ancient Jewish tradition. Modern critical scholars tend to prefer a much later date on the basis of their theories concerning the date of the writing of Deuteronomy, which many of them say was written during the Babylonian exile, and Joshua through 2 Kings, which they believe could not have been written before Deuteronomy. Most conservatives reject these theories as having no solid basis in the text or in history.
The writer is unknown to us, but he may have been Samuel or one of Samuel's contemporaries. Minor additions and changes may have taken place under the superintending ministry of the Holy Spirit after its original composition. However the structure and unity of the book argue for its being the product of one writer rather than a composite put together by many hands over a long time. A few writers have suggested that the writer was a woman since the story concerns two rather assertive women.3However this suggestion is only speculation since there is no solid data to support it.
