Luke 17:1-10 · Sin, Faith, Duty
Plant It and Stand Back!
Luke 17:5-10
Sermon
by Mark Trotter
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The Mustard Seed Parable is a favorite of so many. I can remember mustard seed necklaces, little glass balls with a tiny mustard seed in it, how popular they were. That was J. C. Penny's idea. He distributed them. As I recall you could write him, not to the corporation but to him personally, and he would send you one.

J. C. Penny was an active churchman. He practiced tithing in his personal life. He believed that tithing was the reason for his spectacular success in business. It is just a fact that I remind you of as we look forward to the financial campaign around here in the next couple of weeks.

Jesus said, "If you have faith the size of a mustard seed, you could say to this sycamore tree, `Be uprooted, and be planted in the sea,' and it will obey you."

In Luke this parable is preceded by the disciples asking Jesus, "Increase our faith!" In Luke this incident is isolated as part of a string of Jesus' sayings. But when it appears in Matthew, it is set in a different kind of context that makes it easier to understand. The Matthew version also is the more familiar version of this parable. In Matthew, Jesus says, "If you have faith the size of a mustard seed, you can move mountains."

Matthew says the disciples have just returned from trying to be disciples. They have tried to help somebody, and have failed. They were sent out to conquer the world, and they come back having fallen on their faces. They assume something is wrong. Their diagnosis is, maybe we don't have enough faith. So they ask Jesus, "Increase our faith!"

Their assumption is a common one. Their assumption is that faith is a quantitative thing, something you can store up, something you can accumulate, so that the more you have, the more you can do. Jesus confounds that. He says that if you have faith the size of a mustard seed, the smallest seed there is, then you can move mountains and you can uproot trees. You don't need a lot of faith, because faith is not a thing. It is not something quantitative. It is not something that you accumulate, like cash.

Now that's different, if you have a little cash, and that is all you have, you can do only a few little things. But if you have a lot of cash, you can do impressive things. We think it is like that. But faith is not like that. It is not quantitative. It is qualitative. Faith is a relationship. Faith is a relationship with God. Faith is simply trusting God. Either you trust God, or you don't.

That is why you read the Bible, the story of people who trust God, you see amazing things. Like David and Goliath, the classic story of facing life, and all its dangers and difficulties, with faith alone. That is what that story is about. David, just a lad. Goliath, a giant of a man. I think of Goliath these days, I think he must have looked like Randy Johnson on the mound, six-foot ten, fearsome.

The point of the story of David and Goliath is that Goliath was huge and strong and armed to the teeth, and David was a boy, and he had no armor at all, and little strength and power. But he defeated the giant, because he was armed with God alone.

That story is not just a child's story. That story was told to Jews to remind them of what they had forgotten, and to remind us of what we have forgotten, that they had done great things, miraculous things, by trusting God alone. They were freed from bondage, trusting God. They passed through deep waters, trusting God. They went through a desert wilderness not knowing where the next day's food was coming from, trusting God. They entered a promised land, trusting God. They became a great nation under King David, trusting God.

But now they want to live like other nations. They want to put their trust in something else, in kings, in power and armaments, in being strong in worldly terms. That's not the way they became great. They became great by trusting God. The story of David and Goliath is there simply to remind them that they owe their whole life to God. God saved them. God created them. God has sustained them. To have faith means to trust that God can do that again.

It is in that same understanding of faith, that Jesus says to the disciples, "God is still dong these wonderful things in the world. You can order this sycamine tree to be uprooted, and be planted in the sea, and it will obey you, if you had faith the size of a mustard seed." This is the message. The problem is not that you don't have enough faith. The problem is you aren't using what you have.

It is the same message in the Parable of the Talents. The master goes away. He gives talents to the servants. Talents, I remind you, is money. The first two servants get a certain amount of talents. They are supposed to invest it. They do. They make some money off of it. The third servant, instead of investing the money, sits on it. He plays it safe. The master returns. He rewards the servants who did what they were supposed to do, they invested what was given to them. He punishes the third servant for not doing anything. The servant doesn't get it. He says, "But I guarded it so that I could give it back to you. I played it conservatively." The master said to him, "You just don't get it. You are supposed to use it. You are supposed to do something with it, not bury it."

So it is with faith. You are to use faith. If you do, you will be surprised at what God can do with what you do.

In one of her books, Madeleine LEngel says this. "Slowly I have realized that I do not have to be qualified to do what I am asked to do. That I just have to go ahead and do it, even though I can't do it as well as I think it ought to be done. This is one of the most liberating lessons of my life."

That is exactly what Jesus is saying to the disciples. You don't have to be qualified to do what I ask you to do. You just have to be faithful.

I believe that is why Jesus chose the people he did, such common folk, to be his disciples, to make that point. They were unqualified to do what he asked them to do. He asked them to change the world. Just as David was unqualified to defeat the Philistines, they had no credentials. They had no talent. They had no worldly sophistication. And yet they were sent to all the corners of the world. They were all bumblers, especially Peter, the head of the disciples. That is why I like Peter so much, because he just couldn't seem to get it right.

They come to Jesus saying, "Jesus, we can't get this thing right. Maybe we need some more instruction. Maybe we need some more courses. Maybe I ought to go back and get another degree. What we have, Jesus, is just not enough. We feel so inadequate to do what you ask us to do." Jesus said to them, "You have more than enough. Just use it."

I remember Paul Tillich, the great theologian, defined faith as courage. That is just wonderful. He said that is what faith will look like when you see it. It will look like courage. What faith is, is acting on your trust that God is faithful. Most of the time, if you are doing anything worthwhile, it is done on faith, and it takes courage.

Most people think the opposite of faith is doubt. They think, "I have some doubts, therefore I don't have faith." Well faith doesn't remove doubt. Faith is courage to go into an unknown future in spite of the doubts. Faith doesn't remove fear either. Faith is the courage to do the right thing even when your knees are trembling. Faith doesn't remove disappointments, or guarantee victory. Faith is the courage to keep on going even when you want to give up, but you keep on going.

That is what faith looks like. Madeleine LEngel put it perfectly. "I don't have to have some special qualification to do what I have to do. All I have to do is have the courage to go on and do it."

So keep on going. Keep on doing your duty. Keep on courageously being faithful. You will be amazed at what happens.

ChristianGlobe Networks, Inc., Collected Sermons, by Mark Trotter