I believe the wine in the Bible was alcoholic.
Romans 14 (NKJV)
21 It is good neither to eat meat nor drink wine nor do anything by which your brother stumbles or is offended or is made weak.
I have never heard of anyone past or present that stumbled over or was offended or made weak by plain ol' grape juice. However, if the wine was alcoholic (one could get drunk off of it), then it could be a problem.
The drink offering usually accompanied the burnt offerings, so I believe that they represent the blood of Jesus shed at the cross.
Romans 14 (NKJV)
21 It is good neither to eat meat nor drink wine nor do anything by which your brother stumbles or is offended or is made weak.
I have never heard of anyone past or present that stumbled over or was offended or made weak by plain ol' grape juice. However, if the wine was alcoholic (one could get drunk off of it), then it could be a problem.
The drink offering usually accompanied the burnt offerings, so I believe that they represent the blood of Jesus shed at the cross.