Lemche is closely identified with the movement known as
biblical minimalism and "has assumed the role of philosophical and methodological spokesperson" for the movement.
Charles David Isbell sees Lemche as attempting to dismantle and discredit the "historical-critical" method of Old Testament scholarship. Lemche himself writes that the 'so-called "historical-critical" school that created a universe of its own dubbed "ancient Israel" has dominated the last two hundred years of biblical studies.' He argues that "ancient Israel" is the product of the Jewish community that was of "the Persian and especially Hellenistic and Roman periods". In common with the general trend of modern scholarship, Lemche identifies the Persian and Hellenistic period (5th century to 4th century BCE) as the most appropriate setting in which to seek the composition of the majority of the biblical texts, arguing that this is the single period that best explains the 'mental matrix’ for most Old Testament literature and "probably all of its historiography". ==Publications==