 So that's what I was facing that evening. It turns out that one of the two gentlemen was a former Catholic, and he seemed to be the strongest when it came to telling me that the Catholic Church was wrong about the Eucharist and the Catholic Church was wrong about Mary and so on. So we had a conversation that went for about an hour, and here's how it started. They said, well, you teach this doctrine, and that's not in the Bible.