How do you believe that? (aka proof?) I've known at least two people who were saved and yet possessed. (May have known more, but who can tell that often what that is?)
It's in the Bible.
How do you know that the person is 1. Saved 2. Demon possessed?
Many people just repeat what demons whisper to them without using discernment. Others believe that their dreams are true when the demons take the image of someone they know.
I wouldn't call either of those demonic possession. It is demonic oppression but there is a difference.
Possession means the demon takes total control of their body and the person's personality is not there at all.
I will find the Bible verses after i catch up on my reading,and yes I realize the best solution is for everyone to read the Bible themselves.
However I read the Bible all the way through 3 times before accepting Jesus as my savior and during that time the spiritual war around me was fierce.
I heard voices telling me what it meant and lots of lies and false doctrine and then people coming up to me and repeating the lies and doctrines.
I might not know everything, but I know the basics.
1. God's grace is free, you can't earn it or work for it.
2. We are all sinners in need of a savior
3. Jesus died on the cross for MY sins because He loves me (took me a while to believe this one because I felt unloveable)
There is more but it's basic.
So I know that the Holy Spirit protects people from demonic possession because God revealed this truth to me through scripture and affirming it within my own heart and life.