Matthew 13:31-33

31He gave them another parable: “The kingdom of heaven is like a mustard seed that a man took and sowed in his field.

32It is the smallest of all the seeds, but when it has grown it is the greatest garden plant and becomes a tree, so that the wild birds come and nest in its branches.”

33He told them another parable: “The kingdom of heaven is like yeast that a woman took and mixed with three measures of flour until all the dough had risen.”