God build’s God’s kingdom. But God ordered this world in such a way that His own work within that world takes place through the human beings that reflect His image. That is central to the notion of being made in God’s image. He has enlisted us to act as His stewards in the project of creation. So the objection about us trying to build God’s kingdom by our own efforts, though it seems humble and pious, can actually be a way of hiding from responsibility, of keeping one’s head well down when the boss is looking for volunteers.