For all of those who think that two-kingdoms theology overly spiritualizes the Christian life, Martin Luther to the rescue:
Commenting on Mark 7:33 (“And he took him aside from the multitude, and put his fingers into his ears, and he spit, and touched his tongue.”)
He singles out these two organs, ear and tongue, because the kingdom of Christ is founded upon the Word, which cannot be perceived and comprehended except with these two organs: ears and tongue. The kingdom reigns in the human heart by faith alone. The ears comprehend the Word and the heart believes it. Therefore if tongue and ears are taken away, there remains no marked difference between the kingdom of Christ and the kingdom of the world.
For in the outward life a Christian goes about like an unbelieving man: he builds, tills the ground, and ploughs like other men. He does not undertake any special tasks, neither as regards eating, drinking, sleeping, working, nor anything else. These two organs alone make a difference between Christians and non-Christians: that a Christian speaks and hears in a different manner and has a tongue which praises God’s grace and preaches Christ, declaring that He alone can make men blessed. The world does not do that. It speaks of avarice and other vices, and preaches and praises its own pomp. (Sermon from 1534 reprinted in Day By Day We Magnify Thee)
We get true spirituality in ensouled bodies. And those bodies and their activities are no different from the bodies and activities of non-believers, except when it comes to sacred affairs like prayer as opposed to plumbing.