Jesus told a parable again to the crowd, he said, The kingdom of heaven is like a grain of mustard seed, which a man took and sowed in his field.
Of all the seeds it is the smallest, but when it has grown it is the largest of the garden herbs and becomes a tree, so that the birds of the air come and find shelter in its branches.
He told them another parable: The kingdom of heaven is like leaven ( sour dough) which a woman took and covered over in three measures of meal or flour till all of it was leavened.
These things all taken together Jesus said to the crowds in parables; indeed, without a parable He said nothing to them.
This was in fulfillment of what was spoken by the prophet: I will open My mouth in parables; I will utter things that have been hidden since the foundation of the world.