Matthew 20:20-28  NAS

Then the mother of the sons of Zebedee came to Jesus with her sons, bowing down and making a request of Him.  And He said to her, "What do you wish?"  She said to Him, "Command that in Your kingdom these two sons of mine may sit one on Your right and one on Your left.  But Jesus answered, "You do not know what you are asking.  Are you able to drink the cup that I am about to drink?"  They said to Him, "We are able."  He said to them, "My cup you shall drink; but to sit on My right and on My left, this is not Mine to give, but it is for those for whom it has been prepared by My Father."

And hearing this, the ten became indignant with the two brothers.  But Jesus called them to Himself and said, "You know that the rulers of the Gentiles lord it over them, and their great men exercise authority over them.  It is not that way among you, but whoever wishes to become great among you shall be your servant, and whoever wishes to be first among you shall be your slave; just as the Son of Man did not come to be served, but to serve, and to give His life a ransom for many."