Verses with the word leavened in the New Testament (2 verses):

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.

Luke 13:21
It is like leaven, which a woman took and hid in three measures of meal, till the whole was leavened.