29th Sunday in Ordinary Time, Cycle B

A reading from the holy gospel according to Mark.
 
James and John, the sons of Zebedee,
came forward to Jesus and said to him,
"Teacher, we want you to do for us whatever we ask of you."
And Jesus said to them,
"What is it you want me to do for you?"
And they said to him,
"Grant us to sit, one at your right hand
and one at your left, in your glory."
 
But Jesus said to them,
"You do not know what you are asking.
Are you able to drink the cup that I drink,
or be baptized with the baptism that I am baptized with?"
They replied, "We are able."
Then Jesus said to them,
"The cup that I drink you will drink;
and with the baptism with which I am baptized,
you will be baptized;
but to sit at my right hand or at my left is not mine to grant,
but it is for those for whom it has been prepared."
 
When the ten heard this,
they began to be angry with Tames and John.
 
So Jesus called them and said to them,
"You know that among the Gentiles
those whom they recognize as their rulers lord it over them,
and their great ones are tyrants over them.
 
But it is not so among you;
whoever wishes to become great among you
must be your servant,
and whoever wishes to be first among you must be slave of all.
For the Son of Man came not to be served but to serve,
and to give his life as a ransom for many."