There are many Churches that claim to be Christian. The claim to be a Christian Church implies that its teachings are consistent with the teachings of Jesus Christ, and that Christ’s example is followed by the Church making the claim.
It ought to be obvious to anyone who seriously considers the matter that not all Churches that claim to be Christian really are following teachings consistent with the teachings of Jesus Christ found in the Bible. If one comes to that conclusion, perhaps he may wonder, “How can I be a part of the true Church of God?”