Mark 8:27-30 · Peters’ Confession of Christ
Right Answer - Wrong Conclusion
Mark 8:27-30
Sermon
by King Duncan
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One of the most important frontiers being explored by today’s scientists is that of artificial intelligence--that is, teaching computers to think like humans. In fact, there are many reputable scientists who believe that by the middle of this century computers will be able to think more efficiently and effectively than human beings. At that point the sci-fi horror movies of robots taking over the planet will have some credibility.

But there are skeptics. The great computing science pioneer Alan Turing--about whom last year’s movie The Imitation Game was based--once said that he would call a machine “intelligent” when it was able to have a credible conversation with a human being. Of course, Turing didn’t even imagine that one day we would have Siri, the voice in Apple iPhones and iPads.

Anyway, Turing’s test was whether a computer was able to carry on a conversation with a human. The truth is, however, according to Arno Penzias in his book titled Ideas and Information: Managing in a High-Tech World, it’s a lot easier for a dumb machine to converse with a human being than Turing thought.

In the early days of MIT’s Artificial Intelligence Laboratory, Joseph Weizenbaum wrote a program called ELIZA to demonstrate how easy it was to meet Turing’s test for “intelligence.” He did this by means of a few good guesses as to what people might expect from a conversation, say, with a psychiatrist. For example, if a person says something like, “Everybody laughs at me,” Weizenbaum surmised that this probably reflected a recent experience where this person felt that someone had laughed at him. Thus, the statement “Everybody laughs at me” might elicit a response from the computer like this, “Tell me, who laughed at you within the last few days?” This would be the typical response of a real-life nondirective psychiatrist.

Or suppose the person asked a question with a proper noun in it. Weizenbaum programmed the machine to respond with the words, “Why are you interested in . . .” followed by the proper noun and a question mark. For example, if the person says something like, “I understand that you live in New Jersey,” ELIZA, the machine psychiatrist, would answer, “Why are you interested in New Jersey?”

As an example of how this might work, Penzias provides us with a transcript of a typical conversation from a human caller to ELIZA:

Caller: “Are you really a psychiatrist?”

ELIZA: “Why are you interested in a psychiatrist?”

Caller:  “I’m not really interested in a psychiatrist.

ELIZA: “You say that you are not really interested in a psychiatrist?”

Caller: “That’s right. I never had hang-ups about parents or stuff like that.”

ELIZA: “Tell me some more about your parents.”

You get the idea. Weizenbaum provided ELIZA with a number of such response recipes. In addition, he took care to break things up by having the program select responses randomly and intersperse them with a series of encouraging stock phrases, like, “Please go on.”

Here’s what’s amazing. According to Penzias, Weizenbaum’s program fooled many people. In fact, it fooled them so well that for years afterward many who had conversed with ELIZA refused to believe that the responses came from a mere machine. When Weizenbaum finally pulled the plug on the program, a great uproar ensued. A flock of MIT’s computer users protested the loss of their regular sessions with this friendly “therapist.” (1)

The gap between men and machines may not be as great as we think. Maybe it’s a matter of careful listening and asking the right questions.

There is a famous encounter between a Jewish father and his son. Instead of asking his son if he knew all the answers at school, he asked him, “Did you ask the right questions?” This father believed that asking the right questions was as important as knowing all the answers.

Tom Peters, the well-respected business guru, encouraged asking questions in the work place--even what may seem to others to be dumb questions.

As someone has put it, “Asking dumb questions is a lot easier than correcting dumb mistakes.”

There is a Chinese proverb that goes like this: “Ask a question and you’re a fool for three minutes; do not ask a question and you’re a fool for the rest of your life.”

Every good teacher knows the power of asking the right questions. Jesus was a good teacher. Indeed, he was the best teacher who ever lived, and like a good teacher he asked lots of questions. Questions like “If you are friendly only to your friends, how are you different from anyone else? Even the heathen do that.” (Mt. 5:47, TLB) Or, “Can any one of you by worrying add a single hour to your life?” (Mt. 6:27) How about, “If any of you has a sheep and it falls into a pit on the Sabbath, will you not take hold of it and lift it out?” (Mt. 12:11) Or, “Who is my mother, and who are my brothers?”(Mt. 12:48). Jesus literally asked hundreds of questions. That is what you do when you want people to think for themselves and come to solid conclusions.

The most important question Jesus ever asked is found in our lesson for today. Jesus and his disciples are in the region of Caesarea Philippi. And he posed this question to them, “Who do people say I am?”

His disciples replied, “Some say John the Baptist; others say Elijah; and still others, one of the prophets.”

“But what about you?” he asked. “Who do you say I am?”

Do you see what he’s doing? He wants his disciples to decide for themselves who he is. He doesn’t want them to parrot the answers of others. He begins by asking what others are saying about him. But he already knows what others think. What he wants is to hear his disciples voice their own innermost thoughts about who he is to them. “But what about you?” he asked. “Who do you say I am?”

It was Simon Peter, of course, who answered. Simon was always quick to shoot from the lip. “You are the Messiah,” he said. This time Simon got it right. He was probably putting into words what the rest of the disciples were already thinking: “This is he whom our nation has long awaited. This is he who has been promised. This is he who will deliver Israel.” “You are the Messiah,” he said.

Then, as he often did, Jesus warned them not to tell anyone about him. Jesus then began to teach them that he must suffer many things and be rejected by the elders, the chief priests and the teachers of the law, and that he must be killed and after three days rise again. He spoke plainly about this so none of them could misunderstand, and when he was finished Simon Peter took him aside and began to give him some advice. No, that’s not what it says, is it? What it says is that Peter began to rebuke Jesus. A few moments before Peter had declared that Jesus was the Christ and now Peter is rebuking him.

This is important. Peter had given the right answer, but he had drawn the wrong conclusion. Peter was absolutely right that Jesus was the Messiah, but he was absolutely wrong in his conclusion about what that meant. Peter was a product of his culture. He expected the same kind of Messiah that everyone else expected. Maybe this is why Jesus sternly warned his disciples not to tell anyone of his identity. They weren’t ready to talk to people about what it meant to say that Jesus was the Christ, the Messiah. They didn’t understand it themselves.

People had many false notions of “Messiah.” The promised Davidic Messiah was commonly thought to be a political, nationalistic figure who would free the Jews from Roman domination. Jesus’ mission was not at all like that. Jesus’ mission wasn’t simply to deliver Israel, but to deliver all of humanity. That couldn’t be achieved with a simple revolt. The whole structure of human existence needed to be changed before his work would be done. The disciples, including Peter, didn’t have a clue what that would entail. 

Contrary to popular messianic expectations of the day, Jesus did not come to establish an earthly kingdom. Instead, he declared that the Son of Man must suffer many things, be rejected and killed, and after three days rise again. For the disciples this was a new paradigm of God’s plan for his people for which they were not prepared. Jesus made the point that his suffering and death MUST happen. In contrast to previously veiled language, Jesus spoke plainly about the need for his death and resurrection. Peter understood his words, clearly, and though he had just confessed that Jesus is the Messiah, he could not reconcile his view of Messiah with the rejection, suffering and consequent death that Jesus predicted. Peter had the right answer, but he jumped to the wrong conclusion about what that meant and so he rebuked Christ.

I wonder how often we do that--answer the question right, but draw the wrong conclusion. If I were to ask you to come forward to the front of this church today and ask each of you who Jesus is, I have no doubt that most of you would answer, “He is the Christ. He is the Son of God. He is the Savior of the world.” I have not a doubt you would get the answer right. If I were to go on and ask you, “Who loves you more than anybody in this world loves you, more than your parents love you, more than your children love you, more than your siblings love you, more than your spouse loves you?” I have not a doubt in the world that each of you beginning in kindergarten all the way to senior citizens would answer me, “Jesus loves me like that.” You would get the answer right. But would you get the conclusion right, as well?

For example, if i said Jesus loves you more than anyone on earth can ever love you, what would that mean to you?

Does that mean God will place an invisible shield around you and those you love and that nothing bad will ever happen to you or to them? Intellectually you say, of course not, but some of you have not ever really confronted that truth.

Well-known pastor Bill Hybels tells about a friend of his who has a brain-damaged daughter. Sometimes the sadness this friend feels over her daughter’s condition overwhelms her, as it did recently. She wrote Hybels a letter and gave him permission to quote from it: “. . . I can hardly bear it sometimes,” she writes. “My most recent wave of grief came just last year before her sixteenth birthday. As the day approached, I found myself brooding over all the things that she would never be able to do. What did I do? What I’ve learned to do again and again: I did what I believe is the only thing to do to conquer grief, and that is to embrace it . . . I cried and cried and cried, and faced the truth of my grief head on.” (2)

Some of you may have encountered such grief. Were you able to face it head on? How did it affect your faith in God? Did it drive you away from God? Or were you able to hold on to your knowledge of God’s love for you even in the midst of terrible tragedy? It takes a mature faith to do that. You see, we know God loves us more than any earthly person loves us, but what does that mean? It doesn’t mean that God will place an invisible protective shield around us and those we love so that nothing bad can protect us.

Indeed, some of us have learned about God’s love in the midst of great tragedy. Tragedy is a great teacher.

Years ago Dr. James Dobson had some interesting things to say about the great astrophysicist, Dr. Stephen Hawking.  Dr. Hawking has been called the most intelligent man on earth. He has advanced the general theory of relativity farther than any person since Albert Einstein. Unfortunately, Hawking is afflicted with ALS Syndrome (Lou Gehrig’s disease). It will eventually take his life--though he has already lived longer than anyone ever dreamed. He has been confined to a wheelchair for years, where he can do little more than sit and think. Hawking has lost the ability even to speak, and now he communicates by means of a computer that is operated from the tiniest movement of his fingertips.

Quoting from an Omni magazine article, the author says, “He is too weak to write, feed himself, comb his hair, fix his glasses--all this must be done for him. Yet this most dependent of all men has escaped invalid status. His personality shines through the messy details of his existence.” Hawking said that before he became ill, he had very little interest in life. He called it a “pointless existence” resulting from sheer boredom. He drank too much and did very little work. Then he learned he had ALS and was not expected to live more than two years. The ultimate effect of that diagnosis, beyond its initial shock, was extremely positive. He claimed to have been happier after he was afflicted than before. How can that be understood? Hawking provided the answer.

“When one’s expectations are reduced to zero,” he said, “one really appreciates everything that one does have.” Stated another way: contentment in life is determined in part by what a person anticipates from it. To a man like Hawking, who thought he would soon die quickly, everything takes on meaning--a sunrise or a walk in a park or the laughter of children. Suddenly, each small pleasure becomes precious. By contrast, those who believe life owes them a free ride are often discontent with its finest gifts. (3)

You see, it’s easy to provide the right answer, but to draw the wrong conclusion. We say, I’m God’s child, then think to ourselves, therefore the future will be completely rosy. People whose lives are completely rosy are often the most miserable people in the world. Look at the lives of many Hollywood stars who seemingly have it all but end up destroying their lives in an endless quest for more. And here is Stephen Hawking reduced to practically none of the world’s pleasures and yet he is grateful for the little that he has. 

Peter who has just proclaimed that Jesus was the Messiah immediately rebukes him when Jesus announces he must suffer and die. Peter has provided the right answer, but had drawn the wrong conclusion. We can do that too. Jesus is the Messiah. He is the Son of God. Jesus does love you more than anyone else will ever love you. Trust him. If you go through a time of trial, trust him. If you go through a time of suffering, trust him. If you stand at the door of death, or if someone you love stands at that door, trust him.

He is the Messiah, the Son of the Living God. What that means will someday be revealed to us. For now, we see through a glass darkly (1 Cor. 13:12 KJV). Until then, here’s what we can do--trust him. He will see you through.


1. (New York: W. W. Norton & Company, Inc., 1989).

2. http://www.sermonillustrations.com/a-z/g/grief.htm.

3. New Man, October, 1994, p. 36.

ChristianGlobe Networks, Inc., Dynamic Preaching Sermons Third Quarter 2015, by King Duncan