'Drink the Cup' in the Bible

But Jesus answering said, Ye know not what ye ask. Can ye drink the cup which I am to drink? They say to him, We can.

But Jesus said to them, Ye know not what ye ask. Can ye drink the cup that I drink, or be baptized with the baptism that I am baptized with?

And they said to him, We can. And Jesus said to them, Ye will drink the cup that I drink, and ye will be baptized with the baptism that I am baptized with;

Ye cannot drink the cup of the Lord, and the cup of demons; ye cannot be partakers of the Lords table, and the table of demons.

For as often as ye eat this bread, and drink the cup, ye show forth the Lords death, till he come.