There's a difference between a christian and christianity. Christianity is a religion but true christians are:

"built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone; In whom all the building fitly framed together groweth unto an holy temple in the Lord: In whom ye also are builded together for an habitation of God through the Spirit."

"God that made the world and all things therein, seeing that he is Lord of heaven and earth, dwelleth not in temples made with hands;"

God doesn't need man to build a house (church) of stones for him to dwell. We are the temple of the living God. If a church was really the house of God, how would we know which one is really his house?

"Ye also, as lively stones, are built up a spiritual house, an holy priesthood, to offer up spiritual sacrifices, acceptable to God by Jesus Christ."

Unfortunately, christians are often associated with false relgions even though there are christians who feel that all religions are FALSE!