Yeast
The parable "Yeast"
Luke
13:20 And again he said, Whereunto shall I liken the kingdom of God?
13:21 It is like leaven, which a woman took and hid in three measures of meal, till the whole was leavened.
Matthew
13:33 Another parable spake he unto them; The kingdom of heaven is like unto leaven, which a woman took, and hid in three measures of meal, till the whole was leavened.
