Why is it that when Christians can't handle ex-Christians, they say they were never Christians?
Because we believe the Bible when it says that they were never Christians.
I used to pray every night.
So do Buddhists, Jews, Muslims, Mormons, and all sorts of non-Christians. So what?
Yeah...and?
I once took up the cross and proclaimed Jesus as my savior. I was once born again.
Do tell? So, how, exactly, does one become "un-born again", particularly when the Bible tells us that the gifts and calling of God are without repentence? How, exactly, does one abdicate their new nature and resurrect the old? For that matter, why would someone who has received the new nature
want to resurrect the old?
I was rigorously devout in my beliefsyet many simple-minded Christians always tell me that I was never a Christian simply because I renounced my Christianity. Why is that?
Like I said, because the Bible says so and Christians believe the Bible.
Christians who reason that faith is permanent (meaning that it is impossible to fall away once someone becomes a born again Christian) and say that any born again Christian who turns his back on Christianity was never really a Christian are using a good example of the no true Scotsman fallacy.
Ah, yes! Yet another atheist who has no idea what the No True Scotsman fallacy is.
OK, just to educate you a little, the No True Scotsman fallacy is a fallacy because it relies on subjective opinions. In this case, we're talking about an objective and authoritative definition that one must meet.
Counter-examples to the idea that faith is permanent (that is, born again Christians who turn their back on Christianity) are written off with the no true Scotsman fallacy: they didn't really have true faith; they were never true Christians.
Can I be perfectly honest with you? I really don't care what your "counter-argument" is. The Bible says that it is impossible for a born again believer to lose his salvation and that if someone walks away from Christ, then that is evidence that he is not and was not born again in the first place.
Sorry, if you find that not to your liking, but it's God's Word, not mine. So if you have a problem with it, take it up with Him.