Fruit of the vine: Did Jesus drink fermented (i.e. alcoholic) wine?
The phrase fruit if the vine is a reference to grape juice. Grape juice is unfermented (i.e. non-alcoholic).
Matthew 26:29
But I say to you, I will not drink of this fruit of the vine from now on until that day when I drink it new with you in My Father’s kingdom.”
Mark 14:25
Assuredly, I say to you, I will no longer drink of the fruit of the vine until that day when I drink it new in the kingdom of God.”
Luke 22:18
for I say to you, I will not drink of the fruit of the vine until the kingdom of God comes
http://www.christiancourier.com/articles/read/was_the_fruit_of_the_vine_fermented
http://www.newtestamentchurch.org/york/libraryfiles/FRUITOV.html