Ever wondered where this phrase comes from?

The grapes of wrath

The title of Steinbeck’s novel is taken from The Battle Hymn of the Republic: He is trampling out the vintage where the grapes of wrath are stored. The writer of the song, Julia Ward Howe, was influenced by the Bible but this is not a direct quote. Some see the words as referring to righteous indignation though most now view it as concerning human anger that persists and grows stronger in the way of wine fermenting and gaining potency.