“Shall I not drink the cup the Father has given Me?”
Put your sword back in its sheath!… Shall I not drink the cup the Father has given Me? (John 18:11 BSB)
What it sounds like today
'Cup' as a soft metaphor for an unpleasant fate.
The cultural key
In the prophets the cup is a fixed idiom for God's wrath poured out: 'the cup of his wrath… the cup of staggering' (Isaiah 51:17), 'the cup of the wine of wrath' Jeremiah must hand the nations to drink (Jeremiah 25:15), the cup in God's hand that the wicked drain to the dregs (Psalm 75:8). Jesus has already used it of his own path: 'Are you able to drink the cup that I am to drink?' (Matthew 20:22). John records no Gethsemane agony; the cup appears instead at the arrest, as settled resolve. The question the Synoptics show being fought out in prayer arrives in John already answered, spoken while disarming Peter.
Recovered meaning
What Jesus recoils from in the garden is not merely dying; it is drinking the judgment-cup itself, absorbing what the prophets said the guilty would drain. That's the weight under 'nevertheless, not as I will.'