Counterfeit Christians are no better than Adam and Eve. They have put darkness for light and they themselves are in darkness thinking that they are the real thing but their fruits are evident even to true Christians that they are in delusion. The Bible says thinking themselves to be wise they became fools. They could have been saved but they have not received a love of thy truth and if they die in their sins hell will swallow them up.
The word of God tells us to evangelize that word. It also tells us that the Lord is the word of God. Preachers most of them go to Seminary to learn the Bible and prophecy. The Bible clearly tells us what is not true and counterfeit. But the doctrines and of men that are not of God is of men. Jesus said you will keep your own Traditions making the none effect the word of God and he even said in vain do you worship me keeping for doctrines and Commandments of men. Many are in darkness.
true Christians believe the bible and are born again.