This appears to be a hot topic on here but here is take on it. I do believe you can fall away from faith, Its so easy to become concerned with life and its easy to crave more success and money or a promotion. little by little it can take your eyes completely off gaurd until you become luke warm then from there you really could care less about God.
But there is something I would like to say, If one truly got to know God i mean really seeing who he his falling away is simply not possible because you will be so in love with him thats he is all you want. During my day i truly treasure my time with him, i dont pray for more things physical or spiritual I just sit there talking to him. I get to know him much better when I dont ask for things and just talk.
I crave him more than air and I stumble all the time but because I know and love him so well i could never give him up. But other Christians who fell away from faith didnt do so because they werent saved in the first place they just didnt know God enough. Their salvation is still waiting for them they only have to taake it back
its more serious than that
you can desire to go to heaven
you can go to church every week
you can preach as a minister
you can cast out demons
you can do the sinners prayer
and even then you can be decieved by the serpent
Mat 7:21 Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
Mat 7:22 Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?
Mat 7:23 And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.
so they can WANT TO GO and TRY AND DO RIGHT and do everything
but the one thing they did not do
That sounds pretty god
but it is way outside the bible again
those who do not stop sinning
are not going.
that is what the Bible says in every book
WE CANT STOP SINNING
but Jesus can
so you have to ask for the blood of Jesus to give you the power to stop sinning
and he will
now that is a born again relationship
that is in the Bible from beginning to end
the ones that continue to sin
and teach men so
because they ignored the requirements to be sinless will not go
how can you be sinless?
By the BLOOD OF JESUS ALONE!
he forgives
and then he gives you power to WALK IN THE LAW
that is sanctification
without which
(repentance)
you will be saying LORD LORD how come i cant go?
i didnt know you
no relationship
no putting away of old life
you werent serious
you didnt listen
you didnt follow me
you didnt love me more than beer
more than lying
more than adultery
and more than a lot of other idols
so
everyone can be saved from sinning
just be born again.