At this point I will PLEAD with y'all not to use the word "sick", as in the phrase "sick in the head". This was a phrase concocted by non-mental health practitioners. It is misuse of a good word. There are people who are legitimately, if obliquely, "sick in the head." They may have Alzheimer's, or a brain tumor. But we don't call THEM sick in the head.

Instead, we refer to people who do evil things in opposition to all morality - sick. In truth, their souls are very sick, but THEY are not sick. What they are is EVIL. They are doing or have done evil things. They may be aligned with Satan permanently. So, they are in a way the personification of evil. So, don't call them "sick". They are not sick, in the proper sense. They are EVIL!!!!!

Can they stop being evil?? Of course, God forgives a repentant sinner. Just don't hold your breath. But, you should pray for them, of course. Calling someone sick can inadvertently produce some sympathy for them. They don't require sympathy, they require repentance.