I have been a delivered Alcoholic for 17 years and I will never be bound by this again and I do abstain for this reason.
I have researched extensively about this topic and did every word study in the Hebrew and Greek word referencing wine, strong drink, drunkard, etc in the Bible.
I cannot recall there being a word that means non-fermented in the OT. Most of the Hebrew words for wine, mean grapes, species of vine[grape plants], color of red.
The OT Hebrew word wine means grapes and it does NOT specify whether or not the grapes are un-fermneted or fermented.
The OT Hebrew word for word strong drink, does mean fermented and intoxicating.
But that does not mean we must get spiritually and religiously creative and deduce wine means non fermented.
When the OT word for wine is used, it is usually in scriptures that deal with drunk, so because of that we know there was no un-fermented "grape Juice" spoken of in the Bible, neither is there a non fermented jelly wine, that was sweet wine, mos think this is what Nehemiah was referring to in Neh 8/.10 but the word sweet there has no reference to wine.
The word wine in the NT likewise does not make differentiate between fermented and non fermented. Many hang their hat that we are not to drink on the new wine/old wine found in John 2. However, the word for wine in John 2 is not the same word found in Acts 2. the word in Acts 2 is NEW WINE, while in John 2 it is simply wine. We also know that NEW WINE used in Acts 2, was fermented because the scoffers said Peter and all of them were drunk on NEW WINE.
I personally believe man has dreamed up the notion of unfermented grape juice and other such nonsense to remain religious and pious,. This debate shows without question, that mans 5 senses are attempting to quantify in its own understanding that Jesus and other Bible folks never drank alcoholic wine...but the simple truth is, they more than likely did, because no where in the Bible will you find any reference to UNFERMENTED GRAPE JUICE or GRAPE JELLY SWEET DRINKS.
Now before I am summarily stoned, lets remind ourselves of what Paul said in Romans 14 and most importantly ROmans 14.17
17 For the kingdom of God is not meat and drink; but righteousness, and peace, and joy in the Holy Ghost.
I believe that men made up stories to preach abstaining and one of the greatest hypocrites to this was none other than CI Scofield, who was and died a drunk.
I think lying about word studies in thr bible is far more dangerous than a person that imbibes a few glasses of wine a year.