"Yes, it is as you say," Jesus replied.
When he was accused by the chief priests and the elders, he gave no answer.
Then Pilate asked him, "Don't you hear the testimony they are bringing against you?"
But Jesus made no reply, not even to a single charge—to the great amazement of the governor.
-Matthew 27:11-14
In the gospels of Matthew and Mark, between this last statement from Jesus, 
"Yes, it is as you say" and when he cries out on the cross, "My God my God why have you forsaken me?", he says nothing. During this time, the Jews - his own people whom he has healed and taught and cared for for years - have thrown him at their leaders to be crucified. They mock him and spit on him, they lie about him and humiliate him with a crown of thorns and a robe and a crude sign that says "king of the jews". Yet he said nothing.
He refused to defend himself. He refused to say a word, because there was nothing that could change Pilate's mind. He refused to remind them of everything he had done, or the miracles he'd performed. He refused to remind them of the many times someone realized he was indeed the Messiah. He refused to tell them they were sinning against God. He refused to prove he was God and strike them down for their unbelief. No, he refused because he loved us. He wasn't here to get revenge for all our sins and prove he was God and not to mess with him.
It's so easy to want revenge on someone who has sinned against us, or sinned against a close friend. It's our human nature, to defend ourselves and those we love. When someone hurts them, we want to get them back. It makes us feel better - or does it? Usually hurting someone back isn't relief for our aching sinful souls. Hurting them in revenge for what they did is only sinning more, and it weighs on our hearts.
Revenge falls under many categories...
Anger : Jesus said, "But I say, if you are even angry with someone, you are subject to judgment! If you call someone an idiot, you are in danger of being brought before the court. And if you curse someone, you are in danger of the fires of hell"
or ... love: Jesus said, Love your enemies, and pray for those who persecute you....
or maybe judgment: Jesus said, Do not judge, or you too will be judged. For in the same way you judge others, you will be judged, and with the measure you use, it will be measured to you. Why do you look at the speck of sawdust in your brother's eye and pay no attention to the plank in your own eye? How can you say to your brother, 'Let me take the speck out of your eye,' when all the time there is a plank in your own eye? You hypocrite, first take the plank out of your own eye, and then you will see clearly to remove the speck from your brother's eye.
When Jesus had the chance to take out his wrath on us and get revenge for everything we have done to him, he chose not to speak. He didn't even defend himself. Why? First of all, out of pure love for his children, but also as an example to us to demonstrate love even when others hate us. Even when they have wrongfully sinned against us. There is no reason to stand up for ourselves and get mad at others when they've done us wrong, because we have nothing worthy of that shallow glory in ourselves without God. He is the only one who makes us clean, we can't do that in ourselves.
A friend reminded me recently of Jesus when I expressed to her my desire for revenge. She simply told me, even when everyone mocked him and ridiculed him and humiliated him, he didn't respond. There was no reason to. What good would it have done? This stuck with me, that even though I have mocked and hated God he hasn't taken it back out on me. He simply stood there and bore it all. What an example to follow!
The Lord is our avenger, and we need not worry about taking things into our own hands. That got Peter no where in the Garden of Gethsemane when he chopped off the soldier's ear. God will avenge our wrongdoings, we need not fret about the sins of others.
