This is true; drunkenness is what is taught against in the Bible.
In the OT there are a couple words commonly used:
(1) tiyrowsh (38x in OT) meaning grape juice or fermented wine;
(2) yayin (141x in OT) meaning fermented wine implying intoxication.
In the NT we have:
(1) oinos (33x in NT) simply means wine; but lexicons indicate this perhaps had Hebrew origin from the word yayin -- you got it: fermented. (btw, at the wedding of Cana, this is the wine that Jesus made; and this is the wine that Paul prescribed for Timothy.)
(2) gleukos (gee wonder what that means!!) (1x in NT) which is a sweet wine -- in Greek this is either a fresh juice, but the word is used more of a saccharine (and therefore highly inebriating) fermented wine.
(*) we also see oinophlugia (1x in NT), which derives from oinos, and means an overflow, or excess (1 Pet 4:13), of wine, ie: drunkenness.
Overall, there is no use that could simply mean grape juice while leaving out fermentation; but some uses seem to imply the juice aspects. Most of the usage of wine in the Bible not only can be, but certainly is implied to be, fermented. There are also indications of varying levels of fermentation, or ability to intoxicate. Normal wine used for dinners, for instance, probably were not very strong, but would have been lightly fermented to sterilize the drink.