The text of today contains two parables. The first of these (4,26-29) is known as the Parable of the seed growing secretly, and is found only in the Gospel of Mark. The second (4,30-32), known as the Parable of the Mustard seed is also found in the Gospels of Matthew and Luke.
In the first parable the point that is being made is that the one who scatters the seed only does so and then goes about his routine, not worried about the outcome of his effort. The seed continues to grow, simply because he has first scattered it. He knows that by worrying the seed will not grow faster, and so he lets it be.
In the Parable of the Mustard seed, the point that is made is that from little, there will be much. Small beginnings have great endings. The parable is a call to begin what one has to do without worrying about how small or big the outcome will be. The growth is sure and definite.
When Mark says in 4,33 that Jesus did not speak to the people without a parable, he is in effect saying that there was a parabolic character about all of Jesus’ teaching. This means that all of Jesus’ teaching involved the listener and it was the listener who supplied the lesson to the teaching and not Jesus. This indicates a freedom of choice that every listener was given at the time of Jesus. They were the ones to decide for or against. Jesus would never force them to accept his point of view.
It is sometimes the case that we spend much of our time worrying about the outcome of our actions even before we can do them. This attitude does not allow us to be in the present moment and so the action that we do is not done to the best of our ability. We do not put ourselves fully into the action that we do. At other times, we do not act at all but only worry. While the first of today’s parable is calling us to act and then relax rather than worry, the second is assuring us that our actions will indeed bear fruit.