according to romans, yes.  protestantism is entirely unique in that we are the only christians who believe in the concept of the invisible church. what that means is that the one holy, universal, apostolic, catholic (remember, catholic only means universal) church simply means the body of faithful believers in their entirety. the invisible church is not a political or worldly organization, but rather the collective of true believers everywhere. if you are a faithful christian, you are a part of the one true holy universal apostolic catholic church. period.  every other form of christianity believes that they and they alone are the one true church. the roman catholics, eastern orthodox, oriental orthodox, and assyrian church all believe that they alone are the one true church and if you don't bow before their respective patriarchs, you are outside the church and are damned to hellfire. protestants and protestants alone reject this notion; we believe that those other traditions are flawed to various degrees but they are also members of the one true holy universal apostolic catholic church.
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