Whatever you believe about the church must be compared to what God gives us in His Word. And if it lines up great, and if it doesn't, you better change what you believe. Many groups call themselves churches, but what they think about themselves does not come from the Word of God; it simply comes from tradition.
Matthew 16:18-19: "And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it. And I will give unto thee the keys of the kingdom of heaven: and whosoever thou shalt bind on earth shall be bound in heaven: and whosoever thou shalt loose on earth shall be loosed in heaven." Amen!