Jesus and his disciples were now on the road going up to Jerusalem. Jesus was going ahead of the disciples, who were filled with alarm; the people who followed behind were afraid. Once again Jesus took the twelve disciples aside and spoke of the things that were going to happen to him.
"Listen," he told them, "we are going up to Jerusalem where the Son of Man will be handed over to the chief priests and the teachers of the Law. They will condemn him to death and then hand him over to the Gentiles,
who will make fun of him, spit on him, whip him, and kill him; but three days later he will rise to life."
Then James and John, the sons of Zebedee, came to Jesus. "Teacher," they said, "there is something we want you to do for us."
"What is it?" Jesus asked them.
They answered, "When you sit on your throne in your glorious Kingdom, we want you to let us sit with you, one at your right and one at your left."
Jesus said to them, "You don't know what you are asking for. Can you drink the cup of suffering that I must drink? Can you be baptized in the way I must be baptized?" 1
References for Mark 10:38
10.38 Lk 12.50.
"We can," they answered. Jesus said to them, "You will indeed drink the cup I must drink and be baptized in the way I must be baptized.
But I do not have the right to choose who will sit at my right and my left. It is God who will give these places to those for whom he has prepared them."
When the other ten disciples heard about it, they became angry with James and John.
So Jesus called them all together to him and said, "You know that those who are considered rulers of the heathen have power over them, and the leaders have complete authority. 2
References for Mark 10:42
10.42, 43 Lk 22.25, 26.
This, however, is not the way it is among you. If one of you wants to be great, you must be the servant of the rest; 3
References for Mark 10:43
10.43, 44 Mt 23.11; Mk 9.35; Lk 22.26.
and if one of you wants to be first, you must be the slave of all.
For even the Son of Man did not come to be served; he came to serve and to give his life to redeem many people."