They got away from what they were to learn and ended up just talking about things that didn't matter. Which leads to getting into things that they shouldn't have been involved in. When there is controversy over doctrine there ends up being division which leads to all kinds of things..... Backbiting, gossip, anger, pride,unforgivness, hate..... But most of all it hurts all the people who don't know Christ and what He is about, they just walk away. They very people we are trying to reach.