well as the title states how can you tell which thought is yours? sounds like a bizarre question but.. just curious what people have to say
I do not think that is bizarre.
There are three ways to get "other thoughts into our minds.
1) Mental hallucinations (psychosis), such as schizophrenia.
2) Physical hallucinations. This can be from taking drugs or from high fevers.
3) Dissociative Identity Disorder (Multiple personality disorder). This is not a hallucination but the result of compartmentalization of pain from traumas before the age of 14.
4)Demon(s). Demons can speak internally to a person.
Personally I believe the voices heard by schizophrenics are rooted in the demonic. It has been reported the schizophrenics have been healed once several demons have been cast out. This is detailed in the book "Pigs in the Parlor" By Rev. Hammond.
The big question is how do we know if it is our own thoughts or not. I guess that would depend on which of the above case a person has. Demons can drop suggestions into a person's mind. The best way to figure out if it is demonic is to see if it is tempting you to sin, but this is not a voice per se. Beyond that I am not sure.