What sort of difficulties would happen when people of different cultures try to come together to worship? Tiny little things such as let's tell jokes with each other.

There are roles that are terrifying because they're large or you may feel that they're out of your line, but I'm never terrified once the actual work begins. Once you begin rehearsal, then it's small building blocks. It's solving little problems one at a time.

You find the most in not any particular denomination specifically. It's the style of worship. So if we have what we call a charismatic worship style, that means upbeat music and a more lively style of preaching usually, people are allowed to clap, say "Amen," whether they're mainline Protestant, conservative Protestant, and Catholics, whatever, they're much more likely to be integrated.

But what we found in the study is that churches are ten times less diverse than the neighborhoods they sit in. So there's something more going on than just reflecting the neighborhood, yeah.

So these are the kind of things that now when people are trying to move towards multiracial congregations that they're stressing. They're talking about these scriptures that say we ought to come together, and that at Pentecost, when that the Holy Spirit is said to have come upon the first Christians, they were given the ability to speak in different languages, and so that no matter who the people were, they could all worship together.

We've done a lot of studies to see when they do happen, why, and I mean there's a variety of reasons. But one, it starts with a commitment where they decide this is going to be who we are. Maybe it's out of their faith, a new way of looking at their faith, that we must be integrated across race.

So they actually put it into their mission statement, and they start changing things as a result. They may change how worship works. They may actively recruit folks and try and get them to come and help them to feel comfortable and get them involved in leadership, and there's a variety of ways.