Following Christ isn't just following a religion. It is having a personal relationship with the Lord, getting to know Him, walking with Him and learning to hear His voice.
Going to church doesn't make you a Christian, Clinging to, trusting in and relying on Jesus is what counts. When your heart gets filled with the Love of Jesus then you will more and more want to do what pleases Him.
I do not believe OSAS- God would not force anyone to stay His child if they no longer wanted to. So, I would say that a person who truly knows the Lord and truly walks with Him and Loves Him could have their name blotted out from the Lambs book of Life if they walked away from so great a salvation.
Personally though I would doubt that a person who would go after false gods of other religions was ever really saved.
It's like this: every religion made by man is telling us how to reach god, but -Praise His Name forever-Christianity is God reaching down for us. PTL
I would lke to give another verse-although they're all good!! How about:
If you confess with your mouth the Lord Jesus and believe in your heart that God raised him from the dead you will be saved!
I'll let you in on another little secret I learned early in my walk. I was having doubts about my salvation and I just decided to start living like a believer, and doing those things that other believers did (like spending time in prayer, reading the Word, and going to church every time the doors were open and really getting lost in worship), pretty soon those things started to come more naturally to me.
I have decided
to live like a believer
turn my back on the deciever
Gonna leave it to the Lord