Why did you write this commentary (Deuteronomy)?

In the Author's Preface to his AOTC Deuteronomy commentary, J. G. McConville writes:

" It has been my privilege to be able to spend a lot of time with Deuteronomy over the years. Though one travels to other parts of the Old Testament, whether clad in the scholarly guise of the 'Deuteronomist' and ' Deuteronomistic' literature, or simply as the theological colossus that guards the entrance to Old Testament theology. So I am delighted to have been able to work on the present commentary, and to see it appear in the Apollos series."