Can a Christian be Demon Possessed?

Key texts:  John 15 and 1 Samuel 16

Key question:  Is a backslidden "Christian" still a "Christian"? 

Simple answer:  "Yes"

Thorough answer:  As follows...

Is a backslidden "Christian" walking after the Holy Spirit or after the flesh or after something else?  Romans 8

What are the works of the flesh?
Galatians 6

"they which do such things shall not inherit the kingdom of God"

This is Paul's Gospel
Reference what Paul has to say about his Gospel:  Galatians 1:8-10 and 2 Corinthians 11

Examples of possession of God's servants - in the Bible:

The Holy Spirit of God was upon King Saul, then King Saul walked away from God, then the Holy Spirit of God left him, "and an evil spirit from the Lord troubled him" 1 Samuel 16:14

Now, it is likely that David wasn't too pleased with Saul as he threw spears at David and chased him all over the country side trying to kill him...  but he still considered him as "The Lord's Anointed"

Once "Anointed" always "Anointed"?

Once "Christian" always "Christian"?

The label sticks no matter how we act.

Judas still remains to be known as one of the 12 original "disciples" of Jesus.  Will Judas forever be known as a "disciple"?  Yes - the disciple who betrayed his Master - the only one of the twelve given to Jesus - that is lost - that the scripture be fulfilled.  John 17:12

Abide in me...  John 15

Walk after the Holy Spirit and not after the flesh - in doing so - we overcome all through the unlimited power of Jesus Christ.

PARTIAL TRUTH: Can a Christian be demon possessed? Can a Christian be demonized?
http://www.gotquestions.org/Christian-demon-possessed.html

PARTIAL TRUTH: Can a Christian Be Demon-Possessed?
http://www.blueletterbible.org/faq/don_stewart/stewart.cfm?ID=61

PARTIAL TRUTH:  Can demons possess Christians? - Dare 2 Share Youth Ministry Resources
https://www.dare2share.org/top10/can-demons-possess-christians

FULLER TRUTH:   Could Demons Possess Me?
http://www.christianitytoday.com/iyf/advice/faithqa/16.9.html
The Bible does describe followers of God coming under the influence of evil spirits—King Saul disobeyed God's instruction, and the Bible says, "The Spirit of the Lord had departed from Saul, and an evil spirit … tormented him" (1 Samuel 16:14, NIV). Judas, the disciple who betrayed Jesus, was possessed by Satan (Luke 22:3). And an evil spirit influenced Ananias and Sapphira, husband and wife, to lie to their fellow Christians and to God (Acts 5), leading to their deaths.

PARTIAL TRUTH:
http://christiananswers.net/q-esp/esp-demonpossession.html
So, while I gave you an absolute “NO!” to answer the question, “Can Christians Be Demon Possessed?” I hope I have shown you how Christians can be affected in every aspect of their life by demon-induced thoughts or suggestions.

FULLEST TRUTH THAT I HAVE FOUND TO DATE:
http://www.biblebelievers.com/morton_demon.html
Can A Christian Be Demon Possessed? By Timothy S. Morton
Christians may have a false sense of security about demon possession.

ANOTHER LINK TO THE SAME MATERIAL:
Can A Christian Be Demon Possessed? By Timothy S. Morton
http://www.jesus-is-savior.com/Believer%27s%20Corner/Doctrines/demon_possession.htm

”For what if some did not believe? Shall their unbelief make the faith of God without effect? God forbid: yea, let God be true, but every man a liar; as it is written, That thou mightest be justified in thy sayings, and mightest overcome when thou art judged.” (Romans 3:3-4)