He proposed another parable to them. "The kingdom of heaven may be likened to a man who sowed good seed in his field. While everyone was asleep his enemy came and sowed weeds all through the wheat,… Let them grow together until harvest; then at harvest time I will say to the harvesters, "First collect the weeds and tie them in bundles for burning; but gather the wheat into my barn."'" He proposed another parable to them. "The kingdom of heaven is like a mustard seed that a person took and sowed in a field. It is the smallest of all the seeds, yet when full-grown it is the largest of plants. It becomes a large bush, and the 'birds of the sky come and dwell in its branches.'" He spoke to them another parable. "The kingdom of heaven is like yeast that a woman took and mixed with three measures of wheat flour until the whole batch was leavened." All these things Jesus spoke to the crowds in parables. He spoke to them only in parables, to fulfill what had been said through the prophet: "I will open my mouth in parables, I will announce what has lain hidden from the foundation (of the world)." … (Mt 13:24-43)
Jesus spoke in parables and only in parables regarding the kingdom. Jesus used parables to reveal the truths about the kingdom. These truths were not the result of search by the intelligent and clever people. These were revelations and the revelations are true to the believing people. People of faith accepted these revelations and they were given the secrets of the kingdom.
One of the secrets of the kingdom is that the kingdom contained in itself both good and the bad. God intended only the good but the evil is present among them. But the labourers of the kingdom are not to be bothered about removing the evil but they should only continue to work and work so that the good may reach their completion. Probably what St. Paul says in Romans 12:21 (overcome evil by doing good) is the result of this revelation.
Second and the third revelations about the kingdom are: 1) the kingdom is so small and insignificant that it may go unnoticed. However it will be a place of rest and abode for many; 2) the way the kingdom functions is so unnoticed that only at the end one realizes that the kingdom has taken over the whole society.
