+ Mt 20: 17-28
As Jesus was going up to Jerusalem, he took the twelve (disciples) aside by themselves, and said to them on the way,
“Behold, we are going up to Jerusalem, and the Son of Man will be handed over to the chief priests and the scribes, and they will condemn him to death,
and hand him over to the Gentiles to be mocked and scourged and crucified, and he will be raised on the third day.”
Then the mother of the sons of Zebedee approached him with her sons and did him homage, wishing to ask him for something.
He said to her, “What do you wish?” She answered him, “Command that these two sons of mine sit, one at your right and the other at your left, in your kingdom.”
Jesus said in reply, “You do not know what you are asking. Can you drink the cup that I am going to drink?” They said to him, “We can.”
He replied, “My cup you will indeed drink, but to sit at my right and at my left (, this) is not mine to give but is for those for whom it has been prepared by my Father.”
When the ten heard this, they became indignant at the two brothers.
But Jesus summoned them and said, “You know that the rulers of the Gentiles lord it over them, and the great ones make their authority over them felt.
But it shall not be so among you. Rather, whoever wishes to be great among you shall be your servant;
whoever wishes to be first among you shall be your slave.
Just so, the Son of Man did not come to be served but to serve and to give his life as a ransom for many.”
The New American Bible
The Catechism of the Catholic Church
440 Jesus accepted Peter’s profession of faith, which acknowledged him to be the Messiah, by announcing the imminent Passion of the Son of Man. He unveiled the authentic content of his messianic kingship both in the transcendent identity of the Son of Man “who came down from heaven”, and in his redemptive mission as the suffering Servant: “The Son of Man came not to be served but to serve, and to give his life as a ransom for many.” Hence the true meaning of his kingship is revealed only when he is raised high on the cross. Only after his Resurrection will Peter be able to proclaim Jesus’ messianic kingship to the People of God: “Let all the house of Israel therefore know assuredly that God has made him both Lord and Christ, this Jesus whom you crucified.”
572 The Church remains faithful to the interpretation of “all the Scriptures” that Jesus gave both before and after his Passover: “Was it not necessary that the Christ should suffer these things and enter into his glory?” Jesus’ sufferings took their historical, concrete form from the fact that he was “rejected by the elders and the chief priests and the scribes”, who handed “him to the Gentiles to be mocked and scourged and crucified”.
2235 Those who exercise authority should do so as a service. “Whoever would be great among you must be your servant.” The exercise of authority is measured morally in terms of its divine origin, its reasonable nature and its specific object. No one can command or establish what is contrary to the dignity of persons and the natural law.