Church or movement

Lately there is a lot of discussion going on in the Salvation Army about the idea that the Salvation Army is a church. People say that this is not the case, because we are a movement. I would say that we are both or need to be both. Phil Needham puts it in his book 'Community in Mission' as follows:

"An inflexible and immobile Church is no Church at all; it is a religious relic." (Needham, 1987:55)

When we stop moving forward we stop being church.