And Mal Couch states the opposite of Smith regarding "majority" view (I suspect Couch is probably limiting his majority to conservative scholars), We cannot put a date on the composition of the book of Job, except for the outer limits, perhaps the seventh and the second centuries BC.A folk tale of a righteous sufferer probably existed long before the present poem came into being (Carson, 460).After Job, Psalms is the book most cross-referenced in this study [his commentary on Job].
The language, they say, points to an early period of Israel’s history (Smith, ch. no mention—not the faintest hint—of any of the great events of Israelite history, not even of the Exodus, the passage of the Red Sea, or the giving of the Law on Sinai, much less of the conquest of Canaan, or of the stirring times of the judges and the first great kings of Israel.
It is inconceivable, as has been often said, that a writer of a late date, say of the time of Captivity, or of Josiah, or even of Solomon, should, in a long work like the Book of Job, intentionally and successfully avoid all reference to historical occurrences, and to changes in religious forms or doctrines of a date posterior to that of the events which form the subject of his narrative (Spence-Jones, xv). It should be noted that these works consider the problem of suffering, as does the book of Job, but their answer is quite different.
Aramaic words found in Job had been leading scholars to lean "toward the end of the Old Testament period" and thus a late writing, but that has recently been challenged as unfounded grounds for late dating, since full of Aramaisms which are not of the later type, but such as characterize the antique and highly poetic style, and occur in parts of the Pentateuch, in the Song of Deborah, and in the earliest Psalms.
The style has a “grand archaic character,” which has been recognized by almost all critics (Spence-Jones, xiv).
Simply because of the nature of the material, many of these features reflect the wisdom books; and because of the size and vocabulary of Isaiah, many reflect that eighth-century prophet (Alden, 26-27).