Question: If one thing is clear, it's that there is one, single, visible Church that Jesus founded. This multitude of competing, conflicting denominations is no sign of God's work; therefore, it must be the work of the Evil One. Somewhere in the midst of these 30,000 denominations, there is one true church, and the rest are in sin and rebellion. Answer: The "thousands-of-denominations" argument is very often employed to prove all sorts of things. Here are some citations from letters received from other Catholics: How can all these denominations claim to follow the Bible yet all come to different conclusions?...
