This requires either breaking down the walls that keep new people out or building bridges that permit new people to gain entry to the church. It can be very difficult to separate the gospel from culture. The gospel is relevant because it transcends the ages and culture. The gospel is significant at any point in history or in any culture into which it's introduced. We must be careful not to change the gospel to suit our cultural preferences.
Culture builds walls, the gospel builds bridges.
We're called to be bridge builders. This involves intentional ministry.