But what about someone who gets that last call from the Holy Spirit and then walks away without heeding his call and getting saved?
The only time you can get saved is when the Holy Spirit is dealing (speaking to your heart) with you. There will come a time when a person could be dealt with by the Holy Spirit for the last time and if the person doesnt get saved at that time then they will forever seal their fate. For some people that last call from the Holy Spirit could happen many years before the person is physically dead.
I disagree with your analysis, or rather the outcome of your analysis.
The Holy Spirit is the life-giver, so for as long as we are physically alive, He dwells within us. (Gen 2)
However only faith in Christ can save the sinner from killing their lives within, by choosing for sinful wrong and not God's truthful way.
For example in your heart you hear more than just doubt and unbelief - though currently those are the ungodly forces that you have given rule in your heart.
The sad consequence is that you now believe yourself to be unsaved - for you erroneously believe that you can determine your own salvation though God has basically been telling you constantly what happens when you do that - that believing such thoughts and feelings are not saved - like you are now - you are not going to live forever either - but you will perish the death of the unbeliever.
Salvation is out of reach for those who will not accept the truth. Please never blame the Holy Spirit for that, surely you are 100 percent responsible for the choice that you make?
However that doesn't mean that you are not saved in other parts of your life. Your loving deed, your honesty, your kindness, your forgiving attitudes, your generous moments and all else that has been chosen by the truth of God, and is doing good because loving truth rules your heart - even if it is only for a few moments - for Christ hasn't lost none of us - not you either.
For even if you have killed good/true life within yourself - then God has such stored in Heaven awaiting to be return as rulers of your heart and mind at the End of Days Wouldn't good life jump from joy you being truly yourself again able to glory in God instead of doubt Him all the time?
So yes, as you are now, believing the lies and such bringing death into you - such will die - and be replaced with a you who knows, believes and loves the truth - instead of denying Him and His goodness existence inside of you.
So please repent of following unbelieving ways - for as you have seen such brings only death into you - and put yourself at the end of the line as unbeliever instead of dominating your reality right upfront - as you can see God is warning you constantly about where you have put yourself and has been patiently awaiting the time you chose The Truth over against the lies.
For those forces who bring you your doubt and unbelief - such in life has been cut of from grace and will not be granted eternal life. (Jude) The devil and his dominion over you and all that in you which believes their lies!
So let the truth rule and be saved (John 3:16, 1 Tim 4:9-10) - or - keep having your existence in lies and its constant miseries - the choice is yours - for Christ sets free!
Today is the day to repent - Today is the day for you to be saved. Please stop doubting God's love and accept His love for you instead.
