Matthew 20:21-23 Young's Literal Translation (YLT)
21 and he said to her, `What wilt thou?' She saith to him, `Say, that they may sit -- these my two sons -- one on thy right hand, and one on the left, in thy reign.'
22 And Jesus answering said, `Ye have not known what ye ask for yourselves; are ye able to drink of the cup that I am about to drink? and with the baptism that I am baptized with, to be baptized?' They say to him, `We are able.'
23 And he saith to them, `Of my cup indeed ye shall drink, and with the baptism that I am baptized with ye shall be baptized; but to sit on my right hand and on my left is not mine to give, but -- to those for whom it hath been prepared by my father.'