'The only thing worth counterfeiting is what's valuable. People make counterfeit currency and jewels, not couterfeit bottle caps or garabage. Because the truth of the gosple is priceless, we should expect it to be continously counterfeited. Bank employees are taught to idfentify counterfeit bills by handling the real thing - not be studying all the possible counterfeits. If you're not acquainted with the original, you can easily be deceived by an imitation. But once you're familiar with the genuine article, you will be able to spot a counterfeit.'
Randy Alcorn, Money, Possessions & Eternity, p.72.