Matthew 13:31-33

31Another parable set he before them, saying, The kingdom of the heavens is like a grain of mustard [seed] which a man took and sowed in his field;

32which is less indeed than all seeds, but when it is grown is greater than herbs, and becomes a tree, so that the birds of heaven come and roost in its branches.

33He spoke another parable to them: The kingdom of the heavens is like leaven, which a woman took and hid in three measures of meal until it had been all leavened.