Book of Joel:
J. William Whedbee writes: "The very features that unify the book efface and blur the traces of compositional history. The theory once dominant among biblical scholars of two stages of composition, which argued that a prophetic response to a locust plague was later expanded by apocalyptic editors, is now passé. Most would still allow for a complex history of the book's composition, but interpreters are increasingly content to posit a postexilic date for the final form of the book without delineating clear-cut stages of development. Even the evidence for dating is entirely circumstantial: there is no sign of a king, and the leadership is in the hands of elders; Israel is scattered among the nations (3:2); the Temple, with its priesthood and ritual, are at the center of the community's life (1:9, 13; 2:14); the community is apparently small (2:16); Phoenicians and Greeks, not Assyrians and Babylonians, are active in slave trading (3:6). All such clues point to a probable postexilic date (ca. 500-350 B.C.)." (Harper's Bible Commentary, pp. 716-717)