When people experience a big event like a flood or a terror, it influences to every aspect of their lives. And I believe our faith is supposed to have that kind of influence in our lives. It is true when we look at Jesus' ministry. His preaching and ministry was not bound to religious matters. We see his life as an example of life instead of an example of religion.
When the people of Israel dedicate their wall of Jerusalem, their ceremony was mainly three parts. Purification, Marching, Sacrifices. And they purified the walls and gates which means the expansion of their faith to the living area. When they give sacrifices, their faith impacted to their financial area. We see these expansion in chapter 11 as well. The people of Israel were relocated not to achieve their certain goal, but to keep their faith.
They expanded their faith by focusing on people, by going beyond their obligation, and by devoting what they have. And their expanded faith brought joy to them.