In the Gospel of Luke, we find the following parable:
“When an unclean spirit goes out of a man, he goes through dry places, seeking rest; and finding none, he says, ‘I will return to my house from which I came.’ And when he comes, he finds it swept and put in order. Then he goes and takes with him seven other spirits more wicked than himself, and they enter and dwell there; and the last state of that man is worse than the first” (Luke 11:24-26).
In this parable, Jesus gives us insight into the life of a counterfeit believer. A counterfeit believer is one who is deluded into thinking he or she is a Christian, but is, in reality, not. Jesus is showing us what is taking place in that person on a spiritual level. It’s an insight only He can give us.