'Drink the Cup' in the Bible

But Jesus replied, “You do not realize what you are asking. Are you able to drink the cup [of suffering] that I am about to drink?” They answered, “We are able.”

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?”