18  Then said he, Unto what is the kingdom of God like?  and whereunto shall I resemble it?

19  It is like a grain of mustard seed, which a man took, and cast into his garden; and it grew, and waxed a great tree; and the fowls of the air lodged in the branches of it.

20  And again he said, Whereunto shall I liken the kingdom of God?

21  It is like leaven, which a woman took and hid in three measures of meal, till the whole was leavened.  (Luke 13:18-21)  The Holy Bible