'Drink the Cup' in the Bible

And Jesus having answered, said, Ye know not what ye ask: can ye drink the cup which I am about to drink, and be immersed with the immersion which I am immersed? They say to him, We can.

And Jesus said to them, Ye know not what ye ask: can ye drink the cup which I drink? and the immersion with which I am immersed to be immersed

Ye cannot drink the cup of the Lord, and the cup of demons: ye cannot partake of the table of the Lord, and the table of demons.

Therefore whoever should eat this bread, and drink the cup of the Lord, unworthily, shall be liable to the penalty of the body and blood of the Lord.