Is a religious sociopath present in your church leadership? Well is there?
Those who use mind control on others often have a deep inferiority complex. What they require is attention and power. They learn to crave it, and develop a need for more and more power. They operate under the belief that people are too stupid and UN-spiritual to know what is best for them. Eventually they begin to believe their own propaganda.
Defend your psyche. Do not allow someone without a conscience convince you that humanity is a failure. Normal human beings do possess conscience. Normal human beings are able to love. Normal human beings do not make wild claims.
The best way to protect yourself from a sociopath is to avoid him, to refuse any kind of contact or communication. The only truly effective method for dealing with a sociopath you have identified is to disallow him or her from you life altogether. Sociopaths live completely outside of the social contract, and therefore to include them in relationships or other social arrangements is perilous.