Here‘s how comprehensive Christianity breeds Manichaeism (and paranoia) to boot:
In the meantime, we live in the midst of a cosmic struggle. As C. S. Lewis once said:
There is no neutral ground in the universe. Every square inch, every split second is claimed by God, and counterclaimed by Satan.
Thus every act of obedience—including political obedience—is a part of Christian mission, a bold declaration that we support God’s claim to the throne. And because the assault on that throne comes from every nook and cranny of creation, we must aim our redirective efforts at every nook and cranny as well.
Does Bruce Ashford really mean to implicate cats?
But consider where this notion that the assault on Christ’s reign comes from everywhere. Christians in the United States live with non-Christians. So how do comprehensive Christians live with Jews, Mormons, Roman Catholics, and Muslims? And wouldn’t such either-or language signal some kind of aggression to those who don’t trust Christ? In other words, doesn’t this use of the antithesis turn non-Christians into people “of Satan”? If Aryan science is bad, why not Christian culture?
That’s why those inspired by Abraham Kuyper need to take a page from Augustine:
This heavenly city, then, while it sojourns on earth, calls citizens out of all nations, and gathers together a society of pilgrims of all languages, not scrupling about diversities in the manners, laws, and institutions whereby earthly peace is secured and maintained, but recognizing that, however various these are, they all tend to one and the same end of earthly peace. It therefore is so far from rescinding and abolishing these diversities, that it even preserves and adopts them, so long only as no hindrance to the worship of the one supreme and true God is thus introduced. Even the heavenly city, therefore, while in its state of pilgrimage, avails itself of the peace of earth, and, so far as it can without injuring faith and godliness, desires and maintains a common agreement among men regarding the acquisition of the necessaries of life, and makes this earthly peace bear upon the peace of heaven…