Narcissistic Personality Disorder
Often found in religious leaders, it's certainly not restricted to them. Atheists can have NPD too. A good article summing up some of the telltale signs can be found here:
http://outofthefog.website/personality-disorders-1/2015/12/6/narcissistic-personality-disorder-npd
Denial - Believing or imagining that some painful or traumatic circumstance, event or memory does not exist or did not happen.
False Accusations - Patterns of unwarranted or exaggerated criticism directed towards someone else.
Gaslighting - The practice of brainwashing or convincing a mentally healthy individual that they are going insane or that their understanding of reality is mistaken or false. The term Gaslighting is based on the 1944 MGM movie Gaslight.
Pathological Lying - Persistent deception by an individual to serve their own interests and needs with little or no regard to the needs and concerns of others. A pathological liar is a person who habitually lies to serve their own needs.
Be on the lookout for narcissists - they're toxic. Engage at your own risk.