From John Piper's Series on Romans. As he comes to chapter 13 he deals with the issue of the church's relationship with government.
Subjection to God and Subjection to the State, Part 2
Subjection to God and Subjection to the State, Part 3
Subjection to God and Subjection to the State, Part 4
Subjection to God and Subjection to the State, Part 1"This text has implications for war and peace, dictators and totalitarianism, concentration camps and gulags, revolts and revolutions, laws and law enforcement, political activism and civil disobedience, elections and lobbying, voting and paying taxes, speed limits and seat belts, stop signs and baby seats. This is not a small text. It is one of those mountain peaks of the book of Romans that makes a reader dizzy with implications."
Subjection to God and Subjection to the State, Part 2
Subjection to God and Subjection to the State, Part 3
Subjection to God and Subjection to the State, Part 4