The contribution of this commentary to the understanding of the book of
Zechariah is mainly in four areas. The first is close attention to
philological detail, with a special focus on textual criticism, lexical
semantics, and literary wordplay. A second area of interest is in the
history of interpretation of the book, and takes into account a wide range
of exegetical material, from rabbinic and patristic times to the present.
A third area of interest is in intertextuality. Many passages become fully
intelligible only when they are understood as alluding to earlier
Scripture. Finally, the commentary has an interest in Christian
theological interpretation. The commentary is also remarkable in that it
breaks with the traditional division of the book into two parts, and
argues that it consists instead of three independent and quite different
parts, each of which is attributable to the prophet after whom the book is
named.