grapes of wrath phrase?

[Michelle Cowell <Michelle_Cowell@BBS.W-DELAWARE.K12.IA.US>]

I have an English teacher who wants to impress his class by giving them =
the origin of the phrase  "grapes of wrath" and I want to impress him by =
finding the answer for him but I am stuck.  I tried various dictionaries =
and phrase origin sources but to no avail.  We think it's origin may be =
found somewhere in the Bible but I don't have a clue where to start to =
look.  Does anyone have any ideas?

tia
michelle
ms west delaware hs
manchester, ia
michelle_cowell@bbs.w-delaware.k12.ia.us

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