Under God, Over the The Calling and Accountability of Civil Government speaks biblical truth directly into our situation as churches today as we increasingly face government interference and intervention in the life of the local church. This precise and yet, accessible work draws and expounds upon the Second London Baptist Confession of Faith on the subject of the Civil Magistrate, its calling and its accountability.
A really helpful brief book on the role of civil government and how christians ought to relate to government.
2nd Read: This is modern 2 kingdoms theology which I no longer hold to BUT it's still a helpful book - asks important questions and addresses them thoughtfully; despite no longer agreeing with the framework I'd still affirm ~90% of this book and I'm still happy to recommend the book as presenting an approach to political theology that is far better than the modern average.