Reply to ""Once Saved, Always Saved" -- Really?"

Just a question, based from my on curiosity, without biasing it with my own personal beliefs or position on this Doctrine.


Forget for a moment the terminology (OSAS).  For those that do believe that a person can lose their Salvation, have the Holy Spirit abandon the person's body and their inner spirit, leaving them in a lost, unsaved state.   What is it that accomplishes this?   Or in another way exactly what is it that causes this to occur?


Can Satan or his demons be responsible for such?  If so what protection does the Christian have in order to protect themselves from Satan or his demons power?  Does 1 Tim 4:1 apply here?

Can a person sin so as to lose their salvation?  If so then what sins accomplishes this?  Is 1 Corinthians 5:1-5 an applicable verse to use in discussion of this point?

How many ways can a person lose their salvation according to your interpretation of Scripture?

Do you consider this the unpardonable sin / blaspheme of the Holy Spirit?

If a Christian can lose their salvation is it able to be regained (according to Scripture)?  If not it not a natural expectation that God would, from Scripture, explain clearly how the Christian could/would lose it?


These are some questions that some believers who believe in Eternal Security or that God's Salvation is not able to be lost.  


This is a reasonable point of discussion among Christians and a Doctrine that Christians on both sides of the issue consider backed up by Scriptures. 


For those that believe in Eternal Security or that you cannot lose your salvation how do you reconcile the following verse

Hebrews 6:4 (CEV)
{4} But what about people who turn away after they have already seen the light and have received the gift from heaven and have shared in the Holy Spirit? What about those who turn away after they have received the good message of God and the powers of the future world? There is no way to bring them back. What they are doing is the same as nailing the Son of God to a cross and insulting him in public!


Each advocate for each Doctrine personally should be able to know that reason for what they believe.  Additionally each should recognize that those who hold opposing views also fully believe that their position is supported and reinforced by Scripture.