RSV Matthew 13:31-34 He put before them another parable: "The kingdom of heaven is like a mustard seed that someone took and sowed in his field;32 it is the smallest of all the seeds, but when it has grown it is the greatest of shrubs and becomes a tree, so that the birds of the air come and make nests in its branches."33 He told them another parable: "The kingdom of heaven is like yeast that a woman took and mixed in with three measures of flour until all of it was leavened."34 Jesus told the crowds all these things in parables; without a parable he told them nothing.