Book of Micah in Wikipedia
Micah of Moresheth (most likely the same city as Moresheth-
Gath, mentioned in Micah) prophesied during the days of King
Hezekiah of Judah. This paraphrase of Jeremiah 26:18 contains
practically everything we know of the Prophet himself.
Moresheth-Gath was most likely a small town in southwestern
Judah, though this has yet to be confirmed. Some scholars
argue over how much of the book of Micah can be attributed to
Micah himself. There is general consensus that the majority of
chapters 1–3 are in fact Micah’s own (excluding 2:12–13). The
remaining passages are seen by some as redactions. This will
be further argued in the section on controversy.
Some Old Testament scholars, for example Dr Bruce Waltke in
IVP`s 'New Bible Commentary', defend Micah's authorship of the
entire book. It is generally agreed that Micah composed
chapters 1 through 3; some scholars hold that chapter 6 and
sections of chapter 7 were also written by the historical
Micah. The primary reasons given are because chapters 3–5
foretell of events in the 6th century BCE and chapters 6–7
have elements of a universal religious outlook which was not
widely present in Judaism until much later...