Churches can easily bring together, in a short period of time, a substantial number of people, and politicians have to assume that these folks have the potential to vote. Although there's supposed to be a separation of church and state, they want to go to these churches to say hello to the people, and they assume their hello might turn into votes.

You get a sense that it's okay to have good stuff and still claim a relationship with God. So enslaved Africans rethought their predicament in a way that entailed getting good stuff, material stuff, and having a deep relationship with God. There was no contradiction. And the idea just moves forward from there.

I think of the US as an empire. The UK at one point, because of its reach, was an empire. But these megachurches - for me the concern is to not assume they have more authority than they actually have, to not give them a kind of reach that they really don't possess.

If one has good faith, you can unlock the secrets of scripture, and in unlocking the secrets of scripture, you have access to everything God wants you to have. Ministers of megachurches become examples of the truth of that claim, because they're well paid, living in wonderful homes, driving very nice cars, dressed well. They are doing well, so if you do this, you too can have success.

The ministers argue that within the context of scripture there's a requirement given by God that you've got to give ten percent of your income to the church. And if you give ten percent - here's the hook - God is going to reward your faithfulness by giving you that ten percent back, and a whole lot more.

So long as there's been black churches in the United States, there's been a relationship between spiritual well-being and material acquisition. This has always been the case.

The key figure in the Christian faith involves a story of suffering so that others do well. You're only going to get so much liberation, you're only going to get so much transformation, from a system that is based on suffering.