'Cup' in the Bible
For whoever gives you a cup of water to drink because of your name as followers of Christ, I assure you and most solemnly say to you, he will not lose his reward.
But Jesus said to them, “You do not know what you are asking. Are you able to drink the cup that I drink, or to be baptized with the baptism [of suffering and death] with which I am baptized?”
And they replied to Him, “We are able.” Jesus told them, “The cup that I drink you will drink, and you will be baptized with the baptism with which I am baptized.
And when He had taken a cup [of wine] and given thanks, He gave it to them, and they all drank from it.
He was saying, “Abba, Father! All things are possible for You; take this cup [of judgment] away from Me; but not what I will, but what You will.”