'Cup' in the Bible

For I tell you the truth, whoever gives you a cup of water because you bear Christ's name will never lose his reward.

But Jesus said to them, "You don't know what you are asking! Are you able to drink the cup I drink or be baptized with the baptism I experience?"

They said to him, "We are able." Then Jesus said to them, "You will drink the cup I drink, and you will be baptized with the baptism I experience,

And after taking the cup and giving thanks, he gave it to them, and they all drank from it.

He said, "Abba, Father, all things are possible for you. Take this cup away from me. Yet not what I will, but what you will."