Matthew 20:22

22 But Jesus answered and said, Ye know not what ye ask. Are ye able to drink the cup that I am about to drink? They say unto him, We are able.

Matthew 20:22 In-Context

20 Then came to him the mother of the sons of Zebedee with her sons, worshipping [him], and asking a certain thing of him.
21 And he said unto her, What wouldest thou? She saith unto him, Command that these my two sons may sit, one on thy right hand, and one on thy left hand, in thy kingdom.
22 But Jesus answered and said, Ye know not what ye ask. Are ye able to drink the cup that I am about to drink? They say unto him, We are able.
23 He saith unto them, My cup indeed ye shall drink: but to sit on my right hand, and on [my] left hand, is not mine to give; but [it is for them] for whom it hath been prepared of my Father.
24 And when the ten heard it, they were moved with indignation concerning the two brethren.
The American Standard Version is in the public domain.