'Cup' in the Bible

and whoever gives you a cup of water to drink because you belong to Christ, I solemnly tell you that he will certainly not lose his reward.

"You know not," said He, "what you are asking. Are you able to drink out of the cup from which I am to drink, or to be baptized with the baptism with which I am to be baptized?"

"We are able," they replied. "Out of the cup," said Jesus, "from which I am to drink you shall drink, and with the baptism with which I am to be baptized you shall be baptized;

Then He took the cup, gave thanks, and handed it to them, and they all of them drank from it.

and He said, "Abba! my Father! all things are possible for Thee: take this cup of suffering away from me: and yet not what I desire, but what Thou desirest."