The Old Testament prophets often spoke of a cup in the Lord's hand. It was "the cup of the wine of wrath" (Jer.25.15).
See Jeremiah 25.15-29. See Isaiah 51.17 & 22. And there are many other examples as well. Very strong language.
The picture here is that when the One True God -- grieving over the awful wickedness of this world -- at last steps in to set this world to rights, evil will receive its final reward.
And it will be as though God's holy anger against all the sin in this depraved world will have been turned into wine. A sour, dark wine of judgment. And those who remain in their sins will be forced to drink the cup. And they'll have to drain it "to the dregs" (Is.51.17). They'll drain to the dregs the cup of the wrath of God.
The shocking part of the Bible's story is this:
Guess who also drinks of this "cup of his wrath"? (Is.51.17)
Who also "drinks of the wrath of the Almighty"? (Job 21.20)
- Jesus answered, “You do not know what you are asking. Are you able to drink the cup that I am to drink?” (Matthew 20.22)
- And he said, “Abba, Father, all things are possible for you. Remove this cup from me. Yet not what I will, but what you will.” (Mark 14.36)
- And going a little farther he fell on his face and prayed, saying, “My Father, if it be possible, let this cup pass from me; nevertheless, not as I will, but as you will.”... Again, for the second time, he went away and prayed, “My Father, if this cannot pass unless I drink it, your will be done.” (Matthew 26.39, 42)
- So Jesus said to Peter, “Put your sword into its sheath; shall I not drink the cup that the Father has given me?” (John 18.11)
"What wondrous love is this, O my soul, O my soul, what wondrous love is this, O my soul! What wondrous love is this that caused the Lord of bliss to bear the dreadful curse for my soul, for my soul, to bear the dreadful curse for my soul!"
American folk hymn... #261 in the Red Trinity Hymnal