Jesus is Lord, where?

"It would have been much easier on the early Christians, of course, if they had preached the popular retreatist doctrine that Jesus is Lord of the "heart," that He is concerned with "spiritual" (meaning non-earthly) conquests, but isn't the least bit interested in political questions; that He is content to be "Lord" in the realm of the spirit, while Caesar is Lord everywhere else (i.e., where we feel it really matters). Such a doctrine would have been no threat whatsoever to the gods of Rome. In fact, Caesar couldn't ask for a more cooperative religion! Toothless, impotent Christianity is a gold mine for statism: It keeps men's attention focused on the clouds while the State picks their pockets and steals their children."