Isaiah 53.4-12

Truly he took away our sicknesses,
and he carried away our pains,
and we treated him like a leper,
like one struck by God and humiliated.
And because of our iniquities he was wounded,
because of our crimes he was made weak;
the discipline of our peace was upon him,
and by his bruises we are healed.
We have all been straying like sheep,
each of us lying down in his path;
and the LORD has placed on him
the iniquity of all of us.
He was offered of his own will,
and would not open his mouth;
like a lamb he was led to the slaughter,
and like a sheep before the shearer he remained silent,
and did not open his mouth.
Because of sorrow and because of judgment he was taken away.
Who will tell of his generation?
For he has been cut off from the land of the living;
because of the crime of my people he was stricken.
And they gave him a tomb with the wicked,
and with the rich his death,
though he had done no iniquity,
nor was deceit in his mouth.
And the LORD was pleased to grind him down in weakness.
If his soul were put up for our sin,
his seed would see old age,
and the will of the LORD would be made straight in his hand.
For that which his soul toiled,
he will see and be made full.
By his knowledge he will justify many,
and he will bear their iniquities.
Therefore I will divide him a portion with the great,
and he will divided the loot with the strong,
because his soul was handed over to death,
and he was reckoned with criminals,
and he bore the sins of many,
and pleaded for the transgressors.

Hebrews 5.1-10

For every priest who is taken from men is set in place for men in the things which pertain to God, that he may offer gifts and sacrifices for sins, who can have compassion on the unknowing and erring, for he himself is surrounded by weakness. And for this reason he ought, as for the people so also for himself, to do sacrifice for sins. Nobody usurps the honor for himself except the one who is also called by God, as Aaron also was. Thus also Christ; he did not glorify himself, so that he might become a high priest, but the one who said to him, My son you are; today I have fathered you. (Ps 2.7) As he says also elsewhere, You are a priest forever according to the order of Melchizedek. (Ps 110.4b) The one who, in the days of his flesh, offered prayers and supplications to the one who could render him safe from death, with strong crying and tears, was also heard for his reverence, and though being the son, learned obedience by those things which he suffered; and being made perfect, to all who obey him, he became the cause of eternal salvation, named by God “a high priest according to the ordination of Melchizedek”.

Mark 10.35-45

And James and John, the sons of Zebedee, came to him, saying, “Teacher, we want to ask you to do one thing for us.”

And he said to them, “What do you want me to do for you?”

And they said to him, “Give us that one at your right hand and one at your left hand we may sit in your glory.”

And Jesus said to them, “You do not know what you are asking. Can you drink of the cup which I drink, and be baptized with the baptism which I will be baptized?”

And they said to him, “We can.”

And Jesus said to them, “The very cup which I drink you will drink, and the baptism with which I will be baptized, you will be baptized with. However, to sit on my left hand or my right, is not mine to give, but is for whoever it is prepared for.” And the other ten, hearing, became indignant at James and John.

And Jesus, calling them to him, said to them, “You know that those who would be seen to rule over the nations, exercise lordship against them. And those who are leaders among them exercise power upon them. But it shall not be thus among you; but whichever of you wants to be great among you shall be your servant. And whichever of you wants to be first shall be slave to all. For the son of man himself did not come to be served, but to serve, and to give his own life as redemption for many.”

The theme here seems to be how Jesus gave his life for our sins, as Philip explains to the Ethiopian eunuch (Acts 8.27-39).  Part of the Isaiah passage is quoted there. Actually, much of this passage is quoted throughout the New Testament, in one form or another, and the crucifixion is described as a fulfillment of the prophecy of Isaiah. Hebrews here uses a couple of quotes from Psalms, but places the same idea in verses 7-9.

slave to all: Many of us have gotten the idea that a government should exist to keep people in line.  It seems to me that a government ought to exist as a servant of the people, and not the people as servant to the government… that by taking the foremost place, that of government, it ought to take the least place, that of servant. Here, Jesus says that to take the foremost place, of God’s right hand, he must take the lowest place, of a convict unjustly condemned.