as i said, God's word is the same, from the beginning onward. if you cannot trust God to keep His promise for this little thing of preserving His word, then how can you trust Him about heaven, salvation, security protection etc.?
I think this is a very good point. Given how many variations we have in translations, how early mss show differences across them, how various books have obviously been extended over time, it is blatently obvious that the Bible has been changed countless times. Saying that the changes are minor so do not matter, or that larger changes are a sign of heresy, simply does not refute the charge that the Bible has changed.
And so the conclusion by your own reasoning must be that we cannot trust your god when it comes to heaven, salvation, security protection, etc.