I have always taken the view that sometimes war may be justified, as police action can be justified, to protect the weak and vulnerable (a major preoccupation in scripture). But this is an old and difficult question and very wise people take different views.

Far too many people, especially within evangelicalism, think that the individual is all that matters, and that the corporate dimension is a distraction or diversion. Of course Christianity is deeply personal for every single Christian; nobody gets lost in the kingdom of God. But you can't play that off against the corporate dimension.

Fortunately, Paul is much more interesting than most of his interpreters, myself included.

There's a great deal about Roman Catholicism that I basically disagree with. For instance, the doctrine of Mary which... I have studied that stuff and I simply don't think that has any mileage at all biblically, theologically, and I've got some friends who are very disappointed that I say that.

The church exists primarily for two closely correlated purposes: to worship God and to work for his kingdom in the world ... The church also exists for a third purpose, which serves the other two: to encourage one another, to build one another up in faith, to pray with and for one another, to learn from one another and teach one another, and to set one another examples to follow, challenges to take up, and urgent tasks to perform. This is all part of what is known loosely as fellowship.

If you don't have properly constituted civic authorities you will encourage vigilantism and solo efforts at retributive justice - which is anarchy, and God doesn't want his world to be anarchic.

Almost all the early Christian Fathers were opposed to the death penalty, even though it was of course standard practice across the ancient world.